20526896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 80

約数和(自身を含む): 45934560

約数和(自身を除く): 25407664

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 41, 52, 58, 82, 83, 104, 116, 164, 166, 208, 232, 328, 332, 377, 464, 533, 656, 664, 754, 1066, 1079, 1189, 1328, 1508, 2132, 2158, 2378, 2407, 3016, 3403, 4264, 4316, 4756, 4814, 6032, 6806, 8528, 8632, 9512, 9628, 13612, 15457, 17264, 19024, 19256, 27224, 30914, 31291, 38512, 44239, 54448, 61828, 62582, 88478, 98687, 123656, 125164, 176956, 197374, 247312, 250328, 353912, 394748, 500656, 707824, 789496, 1282931, 1578992, 2565862, 5131724, 10263448, 20526896]

約数ペア:

[(1, 20526896), (2, 10263448), (4, 5131724), (8, 2565862), (13, 1578992), (16, 1282931), (26, 789496), (29, 707824), (41, 500656), (52, 394748), (58, 353912), (82, 250328), (83, 247312), (104, 197374), (116, 176956), (164, 125164), (166, 123656), (208, 98687), (232, 88478), (328, 62582), (332, 61828), (377, 54448), (464, 44239), (533, 38512), (656, 31291), (664, 30914), (754, 27224), (1066, 19256), (1079, 19024), (1189, 17264), (1328, 15457), (1508, 13612), (2132, 9628), (2158, 9512), (2378, 8632), (2407, 8528), (3016, 6806), (3403, 6032), (4264, 4814), (4316, 4756)]