80795960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2857}}^1$

素因数の和:2976

約数の個数: 64

約数和(自身を含む): 209891520

約数和(自身を除く): 129095560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 2857, 3535, 4040, 5656, 5714, 7070, 11428, 14140, 14285, 19999, 22856, 28280, 28570, 39998, 57140, 79996, 99995, 114280, 159992, 199990, 288557, 399980, 577114, 799960, 1154228, 1442785, 2019899, 2308456, 2885570, 4039798, 5771140, 8079596, 10099495, 11542280, 16159192, 20198990, 40397980, 80795960]

約数ペア:

[(1, 80795960), (2, 40397980), (4, 20198990), (5, 16159192), (7, 11542280), (8, 10099495), (10, 8079596), (14, 5771140), (20, 4039798), (28, 2885570), (35, 2308456), (40, 2019899), (56, 1442785), (70, 1154228), (101, 799960), (140, 577114), (202, 399980), (280, 288557), (404, 199990), (505, 159992), (707, 114280), (808, 99995), (1010, 79996), (1414, 57140), (2020, 39998), (2828, 28570), (2857, 28280), (3535, 22856), (4040, 19999), (5656, 14285), (5714, 14140), (7070, 11428)]