218161775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{2477}}^1$

素因数の和:2771

約数の個数: 24

約数和(自身を含む): 292522944

約数和(自身を除く): 74361169

約数列:

[1, 5, 13, 25, 65, 271, 325, 1355, 2477, 3523, 6775, 12385, 17615, 32201, 61925, 88075, 161005, 671267, 805025, 3356335, 8726471, 16781675, 43632355, 218161775]

約数ペア:

[(1, 218161775), (5, 43632355), (13, 16781675), (25, 8726471), (65, 3356335), (271, 805025), (325, 671267), (1355, 161005), (2477, 88075), (3523, 61925), (6775, 32201), (12385, 17615)]