638762625

素因数分解:

$3^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{3571}}^1$

素因数の和:3648

約数の個数: 64

約数和(自身を含む): 1203621120

約数和(自身を除く): 564858495

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 53, 75, 125, 135, 159, 225, 265, 375, 477, 675, 795, 1125, 1325, 1431, 2385, 3375, 3571, 3975, 6625, 7155, 10713, 11925, 17855, 19875, 32139, 35775, 53565, 59625, 89275, 96417, 160695, 178875, 189263, 267825, 446375, 482085, 567789, 803475, 946315, 1339125, 1703367, 2410425, 2838945, 4017375, 4731575, 5110101, 8516835, 12052125, 14194725, 23657875, 25550505, 42584175, 70973625, 127752525, 212920875, 638762625]

約数ペア:

[(1, 638762625), (3, 212920875), (5, 127752525), (9, 70973625), (15, 42584175), (25, 25550505), (27, 23657875), (45, 14194725), (53, 12052125), (75, 8516835), (125, 5110101), (135, 4731575), (159, 4017375), (225, 2838945), (265, 2410425), (375, 1703367), (477, 1339125), (675, 946315), (795, 803475), (1125, 567789), (1325, 482085), (1431, 446375), (2385, 267825), (3375, 189263), (3571, 178875), (3975, 160695), (6625, 96417), (7155, 89275), (10713, 59625), (11925, 53565), (17855, 35775), (19875, 32139)]