81316875

素因数分解:

$3^1\times 5^4\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1453

約数の個数: 40

約数和(自身を含む): 139955200

約数和(自身を除く): 58638325

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 375, 465, 625, 775, 1399, 1875, 2325, 3875, 4197, 6995, 11625, 19375, 20985, 34975, 43369, 58125, 104925, 130107, 174875, 216845, 524625, 650535, 874375, 1084225, 2623125, 3252675, 5421125, 16263375, 27105625, 81316875]

約数ペア:

[(1, 81316875), (3, 27105625), (5, 16263375), (15, 5421125), (25, 3252675), (31, 2623125), (75, 1084225), (93, 874375), (125, 650535), (155, 524625), (375, 216845), (465, 174875), (625, 130107), (775, 104925), (1399, 58125), (1875, 43369), (2325, 34975), (3875, 20985), (4197, 19375), (6995, 11625)]