81860272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 181550880

約数和(自身を除く): 99690608

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 41, 52, 58, 82, 104, 116, 164, 208, 232, 328, 331, 377, 464, 533, 656, 662, 754, 1066, 1189, 1324, 1508, 2132, 2378, 2648, 3016, 4264, 4303, 4756, 5296, 6032, 8528, 8606, 9512, 9599, 13571, 15457, 17212, 19024, 19198, 27142, 30914, 34424, 38396, 54284, 61828, 68848, 76792, 108568, 123656, 124787, 153584, 176423, 217136, 247312, 249574, 352846, 393559, 499148, 705692, 787118, 998296, 1411384, 1574236, 1996592, 2822768, 3148472, 5116267, 6296944, 10232534, 20465068, 40930136, 81860272]

約数ペア:

[(1, 81860272), (2, 40930136), (4, 20465068), (8, 10232534), (13, 6296944), (16, 5116267), (26, 3148472), (29, 2822768), (41, 1996592), (52, 1574236), (58, 1411384), (82, 998296), (104, 787118), (116, 705692), (164, 499148), (208, 393559), (232, 352846), (328, 249574), (331, 247312), (377, 217136), (464, 176423), (533, 153584), (656, 124787), (662, 123656), (754, 108568), (1066, 76792), (1189, 68848), (1324, 61828), (1508, 54284), (2132, 38396), (2378, 34424), (2648, 30914), (3016, 27142), (4264, 19198), (4303, 19024), (4756, 17212), (5296, 15457), (6032, 13571), (8528, 9599), (8606, 9512)]