989981280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:450

約数の個数: 288

約数和(自身を含む): 3550030848

約数和(自身を除く): 2560049568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 67, 72, 80, 90, 93, 96, 120, 124, 134, 144, 155, 160, 180, 186, 201, 240, 248, 268, 279, 288, 310, 331, 335, 360, 372, 402, 465, 480, 496, 536, 558, 603, 620, 662, 670, 720, 744, 804, 930, 992, 993, 1005, 1072, 1116, 1206, 1240, 1324, 1340, 1395, 1440, 1488, 1608, 1655, 1860, 1986, 2010, 2077, 2144, 2232, 2412, 2480, 2648, 2680, 2790, 2976, 2979, 3015, 3216, 3310, 3720, 3972, 4020, 4154, 4464, 4824, 4960, 4965, 5296, 5360, 5580, 5958, 6030, 6231, 6432, 6620, 7440, 7944, 8040, 8308, 8928, 9648, 9930, 10261, 10385, 10592, 10720, 11160, 11916, 12060, 12462, 13240, 14880, 14895, 15888, 16080, 16616, 18693, 19296, 19860, 20522, 20770, 22177, 22320, 23832, 24120, 24924, 26480, 29790, 30783, 31155, 31776, 32160, 33232, 37386, 39720, 41044, 41540, 44354, 44640, 47664, 48240, 49848, 51305, 52960, 59580, 61566, 62310, 66464, 66531, 74772, 79440, 82088, 83080, 88708, 92349, 93465, 95328, 96480, 99696, 102610, 110885, 119160, 123132, 124620, 133062, 149544, 153915, 158880, 164176, 166160, 177416, 184698, 186930, 199392, 199593, 205220, 221770, 238320, 246264, 249240, 266124, 299088, 307830, 328352, 332320, 332655, 354832, 369396, 373860, 399186, 410440, 443540, 461745, 476640, 492528, 498480, 532248, 598176, 615660, 665310, 687487, 709664, 738792, 747720, 798372, 820880, 887080, 923490, 985056, 996960, 997965, 1064496, 1231320, 1330620, 1374974, 1477584, 1495440, 1596744, 1641760, 1774160, 1846980, 1995930, 2062461, 2128992, 2462640, 2661240, 2749948, 2955168, 2990880, 3193488, 3437435, 3548320, 3693960, 3991860, 4124922, 4925280, 5322480, 5499896, 6187383, 6386976, 6874870, 7387920, 7983720, 8249844, 10312305, 10644960, 10999792, 12374766, 13749740, 14775840, 15967440, 16499688, 20624610, 21999584, 24749532, 27499480, 30936915, 31934880, 32999376, 41249220, 49499064, 54998960, 61873830, 65998752, 82498440, 98998128, 109997920, 123747660, 164996880, 197996256, 247495320, 329993760, 494990640, 989981280]

約数ペア:

[(1, 989981280), (2, 494990640), (3, 329993760), (4, 247495320), (5, 197996256), (6, 164996880), (8, 123747660), (9, 109997920), (10, 98998128), (12, 82498440), (15, 65998752), (16, 61873830), (18, 54998960), (20, 49499064), (24, 41249220), (30, 32999376), (31, 31934880), (32, 30936915), (36, 27499480), (40, 24749532), (45, 21999584), (48, 20624610), (60, 16499688), (62, 15967440), (67, 14775840), (72, 13749740), (80, 12374766), (90, 10999792), (93, 10644960), (96, 10312305), (120, 8249844), (124, 7983720), (134, 7387920), (144, 6874870), (155, 6386976), (160, 6187383), (180, 5499896), (186, 5322480), (201, 4925280), (240, 4124922), (248, 3991860), (268, 3693960), (279, 3548320), (288, 3437435), (310, 3193488), (331, 2990880), (335, 2955168), (360, 2749948), (372, 2661240), (402, 2462640), (465, 2128992), (480, 2062461), (496, 1995930), (536, 1846980), (558, 1774160), (603, 1641760), (620, 1596744), (662, 1495440), (670, 1477584), (720, 1374974), (744, 1330620), (804, 1231320), (930, 1064496), (992, 997965), (993, 996960), (1005, 985056), (1072, 923490), (1116, 887080), (1206, 820880), (1240, 798372), (1324, 747720), (1340, 738792), (1395, 709664), (1440, 687487), (1488, 665310), (1608, 615660), (1655, 598176), (1860, 532248), (1986, 498480), (2010, 492528), (2077, 476640), (2144, 461745), (2232, 443540), (2412, 410440), (2480, 399186), (2648, 373860), (2680, 369396), (2790, 354832), (2976, 332655), (2979, 332320), (3015, 328352), (3216, 307830), (3310, 299088), (3720, 266124), (3972, 249240), (4020, 246264), (4154, 238320), (4464, 221770), (4824, 205220), (4960, 199593), (4965, 199392), (5296, 186930), (5360, 184698), (5580, 177416), (5958, 166160), (6030, 164176), (6231, 158880), (6432, 153915), (6620, 149544), (7440, 133062), (7944, 124620), (8040, 123132), (8308, 119160), (8928, 110885), (9648, 102610), (9930, 99696), (10261, 96480), (10385, 95328), (10592, 93465), (10720, 92349), (11160, 88708), (11916, 83080), (12060, 82088), (12462, 79440), (13240, 74772), (14880, 66531), (14895, 66464), (15888, 62310), (16080, 61566), (16616, 59580), (18693, 52960), (19296, 51305), (19860, 49848), (20522, 48240), (20770, 47664), (22177, 44640), (22320, 44354), (23832, 41540), (24120, 41044), (24924, 39720), (26480, 37386), (29790, 33232), (30783, 32160), (31155, 31776)]