20050875

素因数分解:

$3^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 40010880

約数和(自身を除く): 19960005

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 135, 195, 225, 325, 351, 375, 457, 585, 675, 975, 1125, 1371, 1625, 1755, 2285, 2925, 3375, 4113, 4875, 5941, 6855, 8775, 11425, 12339, 14625, 17823, 20565, 29705, 34275, 43875, 53469, 57125, 61695, 89115, 102825, 148525, 160407, 171375, 267345, 308475, 445575, 514125, 742625, 802035, 1336725, 1542375, 2227875, 4010175, 6683625, 20050875]

約数ペア:

[(1, 20050875), (3, 6683625), (5, 4010175), (9, 2227875), (13, 1542375), (15, 1336725), (25, 802035), (27, 742625), (39, 514125), (45, 445575), (65, 308475), (75, 267345), (117, 171375), (125, 160407), (135, 148525), (195, 102825), (225, 89115), (325, 61695), (351, 57125), (375, 53469), (457, 43875), (585, 34275), (675, 29705), (975, 20565), (1125, 17823), (1371, 14625), (1625, 12339), (1755, 11425), (2285, 8775), (2925, 6855), (3375, 5941), (4113, 4875)]