219796875

素因数分解:

$3^3\times 5^6\times {\mathrm{521}}^1$

素因数の和:560

約数の個数: 56

約数和(自身を含む): 407807280

約数和(自身を除く): 188010405

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 521, 625, 675, 1125, 1563, 1875, 2605, 3125, 3375, 4689, 5625, 7815, 9375, 13025, 14067, 15625, 16875, 23445, 28125, 39075, 46875, 65125, 70335, 84375, 117225, 140625, 195375, 325625, 351675, 421875, 586125, 976875, 1628125, 1758375, 2930625, 4884375, 8140625, 8791875, 14653125, 24421875, 43959375, 73265625, 219796875]

約数ペア:

[(1, 219796875), (3, 73265625), (5, 43959375), (9, 24421875), (15, 14653125), (25, 8791875), (27, 8140625), (45, 4884375), (75, 2930625), (125, 1758375), (135, 1628125), (225, 976875), (375, 586125), (521, 421875), (625, 351675), (675, 325625), (1125, 195375), (1563, 140625), (1875, 117225), (2605, 84375), (3125, 70335), (3375, 65125), (4689, 46875), (5625, 39075), (7815, 28125), (9375, 23445), (13025, 16875), (14067, 15625)]