20123803504

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1901}}^1\times {\mathrm{2011}}^1$

素因数の和:3974

約数の個数: 80

約数和(自身を含む): 45554512896

約数和(自身を除く): 25430709392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 1901, 2011, 2632, 3802, 4022, 5264, 7604, 8044, 13307, 14077, 15208, 16088, 26614, 28154, 30416, 32176, 53228, 56308, 89347, 94517, 106456, 112616, 178694, 189034, 212912, 225232, 357388, 378068, 625429, 661619, 714776, 756136, 1250858, 1323238, 1429552, 1512272, 2501716, 2646476, 3822911, 5003432, 5292952, 7645822, 10006864, 10585904, 15291644, 26760377, 30583288, 53520754, 61166576, 107041508, 179676817, 214083016, 359353634, 428166032, 718707268, 1257737719, 1437414536, 2515475438, 2874829072, 5030950876, 10061901752, 20123803504]

約数ペア:

[(1, 20123803504), (2, 10061901752), (4, 5030950876), (7, 2874829072), (8, 2515475438), (14, 1437414536), (16, 1257737719), (28, 718707268), (47, 428166032), (56, 359353634), (94, 214083016), (112, 179676817), (188, 107041508), (329, 61166576), (376, 53520754), (658, 30583288), (752, 26760377), (1316, 15291644), (1901, 10585904), (2011, 10006864), (2632, 7645822), (3802, 5292952), (4022, 5003432), (5264, 3822911), (7604, 2646476), (8044, 2501716), (13307, 1512272), (14077, 1429552), (15208, 1323238), (16088, 1250858), (26614, 756136), (28154, 714776), (30416, 661619), (32176, 625429), (53228, 378068), (56308, 357388), (89347, 225232), (94517, 212912), (106456, 189034), (112616, 178694)]