81166875

素因数分解:

$3^1\times 5^4\times {\mathrm{73}}^1\times {\mathrm{593}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 137318544

約数和(自身を除く): 56151669

約数列:

[1, 3, 5, 15, 25, 73, 75, 125, 219, 365, 375, 593, 625, 1095, 1779, 1825, 1875, 2965, 5475, 8895, 9125, 14825, 27375, 43289, 44475, 45625, 74125, 129867, 136875, 216445, 222375, 370625, 649335, 1082225, 1111875, 3246675, 5411125, 16233375, 27055625, 81166875]

約数ペア:

[(1, 81166875), (3, 27055625), (5, 16233375), (15, 5411125), (25, 3246675), (73, 1111875), (75, 1082225), (125, 649335), (219, 370625), (365, 222375), (375, 216445), (593, 136875), (625, 129867), (1095, 74125), (1779, 45625), (1825, 44475), (1875, 43289), (2965, 27375), (5475, 14825), (8895, 9125)]