2028204100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{2801}}^1$

素因数の和:3385

約数の個数: 72

約数和(自身を含む): 4749961608

約数和(自身を除く): 2721757508

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 557, 650, 1114, 1300, 2228, 2785, 2801, 5570, 5602, 7241, 11140, 11204, 13925, 14005, 14482, 27850, 28010, 28964, 36205, 36413, 55700, 56020, 70025, 72410, 72826, 140050, 144820, 145652, 181025, 182065, 280100, 362050, 364130, 724100, 728260, 910325, 1560157, 1820650, 3120314, 3641300, 6240628, 7800785, 15601570, 20282041, 31203140, 39003925, 40564082, 78007850, 81128164, 101410205, 156015700, 202820410, 405640820, 507051025, 1014102050, 2028204100]

約数ペア:

[(1, 2028204100), (2, 1014102050), (4, 507051025), (5, 405640820), (10, 202820410), (13, 156015700), (20, 101410205), (25, 81128164), (26, 78007850), (50, 40564082), (52, 39003925), (65, 31203140), (100, 20282041), (130, 15601570), (260, 7800785), (325, 6240628), (557, 3641300), (650, 3120314), (1114, 1820650), (1300, 1560157), (2228, 910325), (2785, 728260), (2801, 724100), (5570, 364130), (5602, 362050), (7241, 280100), (11140, 182065), (11204, 181025), (13925, 145652), (14005, 144820), (14482, 140050), (27850, 72826), (28010, 72410), (28964, 70025), (36205, 56020), (36413, 55700)]