1687471360

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:161

約数の個数: 216

約数和(自身を含む): 4457424384

約数和(自身を除く): 2769953024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 43, 46, 62, 64, 80, 86, 92, 115, 124, 128, 155, 160, 172, 184, 215, 230, 248, 256, 310, 320, 344, 368, 430, 460, 496, 620, 640, 688, 713, 736, 860, 920, 989, 992, 1240, 1280, 1333, 1376, 1426, 1472, 1720, 1840, 1849, 1978, 1984, 2480, 2666, 2752, 2852, 2944, 3440, 3565, 3680, 3698, 3956, 3968, 4945, 4960, 5332, 5504, 5704, 5888, 6665, 6880, 7130, 7360, 7396, 7912, 7936, 9245, 9890, 9920, 10664, 11008, 11408, 13330, 13760, 14260, 14720, 14792, 15824, 18490, 19780, 19840, 21328, 22816, 26660, 27520, 28520, 29440, 29584, 30659, 31648, 36980, 39560, 39680, 42527, 42656, 45632, 53320, 55040, 57040, 57319, 59168, 61318, 63296, 73960, 79120, 85054, 85312, 91264, 106640, 114080, 114638, 118336, 122636, 126592, 147920, 153295, 158240, 170108, 170624, 182528, 212635, 213280, 228160, 229276, 236672, 245272, 253184, 286595, 295840, 306590, 316480, 340216, 341248, 425270, 426560, 456320, 458552, 473344, 490544, 573190, 591680, 613180, 632960, 680432, 850540, 853120, 912640, 917104, 981088, 1146380, 1183360, 1226360, 1265920, 1318337, 1360864, 1701080, 1706240, 1834208, 1962176, 2292760, 2366720, 2452720, 2636674, 2721728, 3402160, 3668416, 3924352, 4585520, 4905440, 5273348, 5443456, 6591685, 6804320, 7336832, 7848704, 9171040, 9810880, 10546696, 10886912, 13183370, 13608640, 14673664, 18342080, 19621760, 21093392, 26366740, 27217280, 36684160, 39243520, 42186784, 52733480, 54434560, 73368320, 84373568, 105466960, 168747136, 210933920, 337494272, 421867840, 843735680, 1687471360]

約数ペア:

[(1, 1687471360), (2, 843735680), (4, 421867840), (5, 337494272), (8, 210933920), (10, 168747136), (16, 105466960), (20, 84373568), (23, 73368320), (31, 54434560), (32, 52733480), (40, 42186784), (43, 39243520), (46, 36684160), (62, 27217280), (64, 26366740), (80, 21093392), (86, 19621760), (92, 18342080), (115, 14673664), (124, 13608640), (128, 13183370), (155, 10886912), (160, 10546696), (172, 9810880), (184, 9171040), (215, 7848704), (230, 7336832), (248, 6804320), (256, 6591685), (310, 5443456), (320, 5273348), (344, 4905440), (368, 4585520), (430, 3924352), (460, 3668416), (496, 3402160), (620, 2721728), (640, 2636674), (688, 2452720), (713, 2366720), (736, 2292760), (860, 1962176), (920, 1834208), (989, 1706240), (992, 1701080), (1240, 1360864), (1280, 1318337), (1333, 1265920), (1376, 1226360), (1426, 1183360), (1472, 1146380), (1720, 981088), (1840, 917104), (1849, 912640), (1978, 853120), (1984, 850540), (2480, 680432), (2666, 632960), (2752, 613180), (2852, 591680), (2944, 573190), (3440, 490544), (3565, 473344), (3680, 458552), (3698, 456320), (3956, 426560), (3968, 425270), (4945, 341248), (4960, 340216), (5332, 316480), (5504, 306590), (5704, 295840), (5888, 286595), (6665, 253184), (6880, 245272), (7130, 236672), (7360, 229276), (7396, 228160), (7912, 213280), (7936, 212635), (9245, 182528), (9890, 170624), (9920, 170108), (10664, 158240), (11008, 153295), (11408, 147920), (13330, 126592), (13760, 122636), (14260, 118336), (14720, 114638), (14792, 114080), (15824, 106640), (18490, 91264), (19780, 85312), (19840, 85054), (21328, 79120), (22816, 73960), (26660, 63296), (27520, 61318), (28520, 59168), (29440, 57319), (29584, 57040), (30659, 55040), (31648, 53320), (36980, 45632), (39560, 42656), (39680, 42527)]