20838576

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:730

約数の個数: 80

約数和(自身を含む): 59781888

約数和(自身を除く): 38943312

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 61, 66, 88, 122, 132, 176, 183, 244, 264, 366, 488, 528, 647, 671, 732, 976, 1294, 1342, 1464, 1941, 2013, 2588, 2684, 2928, 3882, 4026, 5176, 5368, 7117, 7764, 8052, 10352, 10736, 14234, 15528, 16104, 21351, 28468, 31056, 32208, 39467, 42702, 56936, 78934, 85404, 113872, 118401, 157868, 170808, 236802, 315736, 341616, 434137, 473604, 631472, 868274, 947208, 1302411, 1736548, 1894416, 2604822, 3473096, 5209644, 6946192, 10419288, 20838576]

約数ペア:

[(1, 20838576), (2, 10419288), (3, 6946192), (4, 5209644), (6, 3473096), (8, 2604822), (11, 1894416), (12, 1736548), (16, 1302411), (22, 947208), (24, 868274), (33, 631472), (44, 473604), (48, 434137), (61, 341616), (66, 315736), (88, 236802), (122, 170808), (132, 157868), (176, 118401), (183, 113872), (244, 85404), (264, 78934), (366, 56936), (488, 42702), (528, 39467), (647, 32208), (671, 31056), (732, 28468), (976, 21351), (1294, 16104), (1342, 15528), (1464, 14234), (1941, 10736), (2013, 10352), (2588, 8052), (2684, 7764), (2928, 7117), (3882, 5368), (4026, 5176)]