20021625

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^2$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 39947544

約数和(自身を除く): 19925919

約数列:

[1, 3, 5, 9, 13, 15, 25, 37, 39, 45, 65, 75, 111, 117, 125, 185, 195, 225, 325, 333, 375, 481, 555, 585, 925, 975, 1125, 1369, 1443, 1625, 1665, 2405, 2775, 2925, 4107, 4329, 4625, 4875, 6845, 7215, 8325, 12025, 12321, 13875, 14625, 17797, 20535, 21645, 34225, 36075, 41625, 53391, 60125, 61605, 88985, 102675, 108225, 160173, 171125, 180375, 266955, 308025, 444925, 513375, 541125, 800865, 1334775, 1540125, 2224625, 4004325, 6673875, 20021625]

約数ペア:

[(1, 20021625), (3, 6673875), (5, 4004325), (9, 2224625), (13, 1540125), (15, 1334775), (25, 800865), (37, 541125), (39, 513375), (45, 444925), (65, 308025), (75, 266955), (111, 180375), (117, 171125), (125, 160173), (185, 108225), (195, 102675), (225, 88985), (325, 61605), (333, 60125), (375, 53391), (481, 41625), (555, 36075), (585, 34225), (925, 21645), (975, 20535), (1125, 17797), (1369, 14625), (1443, 13875), (1625, 12321), (1665, 12025), (2405, 8325), (2775, 7215), (2925, 6845), (4107, 4875), (4329, 4625)]