68156690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2503}}^1$

素因数の和:2906

約数の個数: 32

約数和(自身を含む): 140624640

約数和(自身を除く): 72467950

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 389, 778, 1945, 2503, 2723, 3890, 5006, 5446, 12515, 13615, 17521, 25030, 27230, 35042, 87605, 175210, 973667, 1947334, 4868335, 6815669, 9736670, 13631338, 34078345, 68156690]

約数ペア:

[(1, 68156690), (2, 34078345), (5, 13631338), (7, 9736670), (10, 6815669), (14, 4868335), (35, 1947334), (70, 973667), (389, 175210), (778, 87605), (1945, 35042), (2503, 27230), (2723, 25030), (3890, 17521), (5006, 13615), (5446, 12515)]