20147960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1531}}^1$

素因数の和:1596

約数の個数: 64

約数和(自身を含む): 52945920

約数和(自身を除く): 32797960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1531, 1645, 1880, 2632, 3062, 3290, 6124, 6580, 7655, 10717, 12248, 13160, 15310, 21434, 30620, 42868, 53585, 61240, 71957, 85736, 107170, 143914, 214340, 287828, 359785, 428680, 503699, 575656, 719570, 1007398, 1439140, 2014796, 2518495, 2878280, 4029592, 5036990, 10073980, 20147960]

約数ペア:

[(1, 20147960), (2, 10073980), (4, 5036990), (5, 4029592), (7, 2878280), (8, 2518495), (10, 2014796), (14, 1439140), (20, 1007398), (28, 719570), (35, 575656), (40, 503699), (47, 428680), (56, 359785), (70, 287828), (94, 214340), (140, 143914), (188, 107170), (235, 85736), (280, 71957), (329, 61240), (376, 53585), (470, 42868), (658, 30620), (940, 21434), (1316, 15310), (1531, 13160), (1645, 12248), (1880, 10717), (2632, 7655), (3062, 6580), (3290, 6124)]