64861780

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{14543}}^1$

素因数の和:14775

約数の個数: 24

約数和(自身を含む): 136829952

約数和(自身を除く): 71968172

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 14543, 29086, 58172, 72715, 145430, 290860, 3243089, 6486178, 12972356, 16215445, 32430890, 64861780]

約数ペア:

[(1, 64861780), (2, 32430890), (4, 16215445), (5, 12972356), (10, 6486178), (20, 3243089), (223, 290860), (446, 145430), (892, 72715), (1115, 58172), (2230, 29086), (4460, 14543)]