1580097280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{39821}}^1$

素因数の和:39873

約数の個数: 72

約数和(自身を含む): 3907016064

約数和(自身を除く): 2326918784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 39821, 79642, 159284, 199105, 318568, 398210, 637136, 796420, 1234451, 1274272, 1592840, 2468902, 2548544, 3185680, 4937804, 5097088, 6172255, 6371360, 9875608, 10194176, 12344510, 12742720, 19751216, 24689020, 25485440, 39502432, 49378040, 50970880, 79004864, 98756080, 158009728, 197512160, 316019456, 395024320, 790048640, 1580097280]

約数ペア:

[(1, 1580097280), (2, 790048640), (4, 395024320), (5, 316019456), (8, 197512160), (10, 158009728), (16, 98756080), (20, 79004864), (31, 50970880), (32, 49378040), (40, 39502432), (62, 25485440), (64, 24689020), (80, 19751216), (124, 12742720), (128, 12344510), (155, 10194176), (160, 9875608), (248, 6371360), (256, 6172255), (310, 5097088), (320, 4937804), (496, 3185680), (620, 2548544), (640, 2468902), (992, 1592840), (1240, 1274272), (1280, 1234451), (1984, 796420), (2480, 637136), (3968, 398210), (4960, 318568), (7936, 199105), (9920, 159284), (19840, 79642), (39680, 39821)]