64850725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{419}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 83119680

約数和(自身を除く): 18268955

約数列:

[1, 5, 25, 41, 151, 205, 419, 755, 1025, 2095, 3775, 6191, 10475, 17179, 30955, 63269, 85895, 154775, 316345, 429475, 1581725, 2594029, 12970145, 64850725]

約数ペア:

[(1, 64850725), (5, 12970145), (25, 2594029), (41, 1581725), (151, 429475), (205, 316345), (419, 154775), (755, 85895), (1025, 63269), (2095, 30955), (3775, 17179), (6191, 10475)]