18516550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 37778832

約数和(自身を除く): 19262282

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 305, 325, 467, 610, 650, 793, 934, 1525, 1586, 2335, 3050, 3965, 4670, 6071, 7930, 11675, 12142, 19825, 23350, 28487, 30355, 39650, 56974, 60710, 142435, 151775, 284870, 303550, 370331, 712175, 740662, 1424350, 1851655, 3703310, 9258275, 18516550]

約数ペア:

[(1, 18516550), (2, 9258275), (5, 3703310), (10, 1851655), (13, 1424350), (25, 740662), (26, 712175), (50, 370331), (61, 303550), (65, 284870), (122, 151775), (130, 142435), (305, 60710), (325, 56974), (467, 39650), (610, 30355), (650, 28487), (793, 23350), (934, 19825), (1525, 12142), (1586, 11675), (2335, 7930), (3050, 6071), (3965, 4670)]