20691750668

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{138251}}^1$

素因数の和:138374

約数の個数: 48

約数和(自身を含む): 40135108608

約数和(自身を除く): 19443357940

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 71, 124, 142, 284, 527, 1054, 1207, 2108, 2201, 2414, 4402, 4828, 8804, 37417, 74834, 138251, 149668, 276502, 553004, 2350267, 4285781, 4700534, 8571562, 9401068, 9815821, 17143124, 19631642, 39263284, 72858277, 145716554, 166868957, 291433108, 304290451, 333737914, 608580902, 667475828, 1217161804, 5172937667, 10345875334, 20691750668]

約数ペア:

[(1, 20691750668), (2, 10345875334), (4, 5172937667), (17, 1217161804), (31, 667475828), (34, 608580902), (62, 333737914), (68, 304290451), (71, 291433108), (124, 166868957), (142, 145716554), (284, 72858277), (527, 39263284), (1054, 19631642), (1207, 17143124), (2108, 9815821), (2201, 9401068), (2414, 8571562), (4402, 4700534), (4828, 4285781), (8804, 2350267), (37417, 553004), (74834, 276502), (138251, 149668)]