81478875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{12781}}^1$

素因数の和:12816

約数の個数: 32

約数和(自身を含む): 143567424

約数和(自身を除く): 62088549

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 6375, 12781, 38343, 63905, 191715, 217277, 319525, 651831, 958575, 1086385, 1597625, 3259155, 4792875, 5431925, 16295775, 27159625, 81478875]

約数ペア:

[(1, 81478875), (3, 27159625), (5, 16295775), (15, 5431925), (17, 4792875), (25, 3259155), (51, 1597625), (75, 1086385), (85, 958575), (125, 651831), (255, 319525), (375, 217277), (425, 191715), (1275, 63905), (2125, 38343), (6375, 12781)]