56157220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4507}}^1$

素因数の和:4612

約数の個数: 48

約数和(自身を含む): 136321920

約数和(自身を除く): 80164700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 4507, 6230, 9014, 12460, 18028, 22535, 31549, 45070, 63098, 90140, 126196, 157745, 315490, 401123, 630980, 802246, 1604492, 2005615, 2807861, 4011230, 5615722, 8022460, 11231444, 14039305, 28078610, 56157220]

約数ペア:

[(1, 56157220), (2, 28078610), (4, 14039305), (5, 11231444), (7, 8022460), (10, 5615722), (14, 4011230), (20, 2807861), (28, 2005615), (35, 1604492), (70, 802246), (89, 630980), (140, 401123), (178, 315490), (356, 157745), (445, 126196), (623, 90140), (890, 63098), (1246, 45070), (1780, 31549), (2492, 22535), (3115, 18028), (4507, 12460), (6230, 9014)]