64988890

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:574

約数の個数: 32

約数和(自身を含む): 118895616

約数和(自身を除く): 53906726

約数列:

[1, 2, 5, 10, 151, 193, 223, 302, 386, 446, 755, 965, 1115, 1510, 1930, 2230, 29143, 33673, 43039, 58286, 67346, 86078, 145715, 168365, 215195, 291430, 336730, 430390, 6498889, 12997778, 32494445, 64988890]

約数ペア:

[(1, 64988890), (2, 32494445), (5, 12997778), (10, 6498889), (151, 430390), (193, 336730), (223, 291430), (302, 215195), (386, 168365), (446, 145715), (755, 86078), (965, 67346), (1115, 58286), (1510, 43039), (1930, 33673), (2230, 29143)]