56157080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1531}}^1$

素因数の和:1680

約数の個数: 64

約数和(自身を含む): 145601280

約数和(自身を除く): 89444200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1531, 1834, 2620, 3062, 3668, 4585, 5240, 6124, 7336, 7655, 9170, 10717, 12248, 15310, 18340, 21434, 30620, 36680, 42868, 53585, 61240, 85736, 107170, 200561, 214340, 401122, 428680, 802244, 1002805, 1403927, 1604488, 2005610, 2807854, 4011220, 5615708, 7019635, 8022440, 11231416, 14039270, 28078540, 56157080]

約数ペア:

[(1, 56157080), (2, 28078540), (4, 14039270), (5, 11231416), (7, 8022440), (8, 7019635), (10, 5615708), (14, 4011220), (20, 2807854), (28, 2005610), (35, 1604488), (40, 1403927), (56, 1002805), (70, 802244), (131, 428680), (140, 401122), (262, 214340), (280, 200561), (524, 107170), (655, 85736), (917, 61240), (1048, 53585), (1310, 42868), (1531, 36680), (1834, 30620), (2620, 21434), (3062, 18340), (3668, 15310), (4585, 12248), (5240, 10717), (6124, 9170), (7336, 7655)]