991623680

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 240

約数和(自身を含む): 2665978920

約数和(自身を除く): 1674355240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 37, 38, 40, 58, 64, 74, 76, 80, 95, 116, 128, 145, 148, 152, 160, 185, 190, 232, 256, 290, 296, 304, 320, 361, 370, 380, 464, 512, 551, 580, 592, 608, 640, 703, 722, 740, 760, 928, 1073, 1102, 1160, 1184, 1216, 1280, 1406, 1444, 1480, 1520, 1805, 1856, 2146, 2204, 2320, 2368, 2432, 2560, 2755, 2812, 2888, 2960, 3040, 3515, 3610, 3712, 4292, 4408, 4640, 4736, 4864, 5365, 5510, 5624, 5776, 5920, 6080, 7030, 7220, 7424, 8584, 8816, 9280, 9472, 9728, 10469, 10730, 11020, 11248, 11552, 11840, 12160, 13357, 14060, 14440, 14848, 17168, 17632, 18560, 18944, 20387, 20938, 21460, 22040, 22496, 23104, 23680, 24320, 26714, 28120, 28880, 34336, 35264, 37120, 40774, 41876, 42920, 44080, 44992, 46208, 47360, 48640, 52345, 53428, 56240, 57760, 66785, 68672, 70528, 74240, 81548, 83752, 85840, 88160, 89984, 92416, 94720, 101935, 104690, 106856, 112480, 115520, 133570, 137344, 141056, 163096, 167504, 171680, 176320, 179968, 184832, 203870, 209380, 213712, 224960, 231040, 267140, 274688, 282112, 326192, 335008, 343360, 352640, 359936, 387353, 407740, 418760, 427424, 449920, 462080, 534280, 549376, 652384, 670016, 686720, 705280, 774706, 815480, 837520, 854848, 899840, 924160, 1068560, 1304768, 1340032, 1373440, 1410560, 1549412, 1630960, 1675040, 1709696, 1799680, 1936765, 2137120, 2609536, 2680064, 2746880, 3098824, 3261920, 3350080, 3419392, 3873530, 4274240, 5219072, 5360128, 6197648, 6523840, 6700160, 6838784, 7747060, 8548480, 10438144, 12395296, 13047680, 13400320, 15494120, 17096960, 24790592, 26095360, 26800640, 30988240, 34193920, 49581184, 52190720, 61976480, 99162368, 123952960, 198324736, 247905920, 495811840, 991623680]

約数ペア:

[(1, 991623680), (2, 495811840), (4, 247905920), (5, 198324736), (8, 123952960), (10, 99162368), (16, 61976480), (19, 52190720), (20, 49581184), (29, 34193920), (32, 30988240), (37, 26800640), (38, 26095360), (40, 24790592), (58, 17096960), (64, 15494120), (74, 13400320), (76, 13047680), (80, 12395296), (95, 10438144), (116, 8548480), (128, 7747060), (145, 6838784), (148, 6700160), (152, 6523840), (160, 6197648), (185, 5360128), (190, 5219072), (232, 4274240), (256, 3873530), (290, 3419392), (296, 3350080), (304, 3261920), (320, 3098824), (361, 2746880), (370, 2680064), (380, 2609536), (464, 2137120), (512, 1936765), (551, 1799680), (580, 1709696), (592, 1675040), (608, 1630960), (640, 1549412), (703, 1410560), (722, 1373440), (740, 1340032), (760, 1304768), (928, 1068560), (1073, 924160), (1102, 899840), (1160, 854848), (1184, 837520), (1216, 815480), (1280, 774706), (1406, 705280), (1444, 686720), (1480, 670016), (1520, 652384), (1805, 549376), (1856, 534280), (2146, 462080), (2204, 449920), (2320, 427424), (2368, 418760), (2432, 407740), (2560, 387353), (2755, 359936), (2812, 352640), (2888, 343360), (2960, 335008), (3040, 326192), (3515, 282112), (3610, 274688), (3712, 267140), (4292, 231040), (4408, 224960), (4640, 213712), (4736, 209380), (4864, 203870), (5365, 184832), (5510, 179968), (5624, 176320), (5776, 171680), (5920, 167504), (6080, 163096), (7030, 141056), (7220, 137344), (7424, 133570), (8584, 115520), (8816, 112480), (9280, 106856), (9472, 104690), (9728, 101935), (10469, 94720), (10730, 92416), (11020, 89984), (11248, 88160), (11552, 85840), (11840, 83752), (12160, 81548), (13357, 74240), (14060, 70528), (14440, 68672), (14848, 66785), (17168, 57760), (17632, 56240), (18560, 53428), (18944, 52345), (20387, 48640), (20938, 47360), (21460, 46208), (22040, 44992), (22496, 44080), (23104, 42920), (23680, 41876), (24320, 40774), (26714, 37120), (28120, 35264), (28880, 34336)]