815625

素因数分解:

$3^2\times 5^5\times {\mathrm{29}}^1$

素因数の和:60

約数の個数: 36

約数和(自身を含む): 1523340

約数和(自身を除く): 707715

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 625, 725, 1125, 1305, 1875, 2175, 3125, 3625, 5625, 6525, 9375, 10875, 18125, 28125, 32625, 54375, 90625, 163125, 271875, 815625]

約数ペア:

[(1, 815625), (3, 271875), (5, 163125), (9, 90625), (15, 54375), (25, 32625), (29, 28125), (45, 18125), (75, 10875), (87, 9375), (125, 6525), (145, 5625), (225, 3625), (261, 3125), (375, 2175), (435, 1875), (625, 1305), (725, 1125)]