20080125

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1373}}^1$

素因数の和:1407

約数の個数: 48

約数和(自身を含む): 39010608

約数和(自身を除く): 18930483

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 975, 1125, 1373, 1625, 2925, 4119, 4875, 6865, 12357, 14625, 17849, 20595, 34325, 53547, 61785, 89245, 102975, 160641, 171625, 267735, 308925, 446225, 514875, 803205, 1338675, 1544625, 2231125, 4016025, 6693375, 20080125]

約数ペア:

[(1, 20080125), (3, 6693375), (5, 4016025), (9, 2231125), (13, 1544625), (15, 1338675), (25, 803205), (39, 514875), (45, 446225), (65, 308925), (75, 267735), (117, 171625), (125, 160641), (195, 102975), (225, 89245), (325, 61785), (375, 53547), (585, 34325), (975, 20595), (1125, 17849), (1373, 14625), (1625, 12357), (2925, 6865), (4119, 4875)]