78287120

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9689}}^1$

素因数の和:9803

約数の個数: 40

約数和(自身を含む): 183838680

約数和(自身を除く): 105551560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 9689, 19378, 38756, 48445, 77512, 96890, 155024, 193780, 387560, 775120, 978589, 1957178, 3914356, 4892945, 7828712, 9785890, 15657424, 19571780, 39143560, 78287120]

約数ペア:

[(1, 78287120), (2, 39143560), (4, 19571780), (5, 15657424), (8, 9785890), (10, 7828712), (16, 4892945), (20, 3914356), (40, 1957178), (80, 978589), (101, 775120), (202, 387560), (404, 193780), (505, 155024), (808, 96890), (1010, 77512), (1616, 48445), (2020, 38756), (4040, 19378), (8080, 9689)]