80919800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31123}}^1$

素因数の和:31152

約数の個数: 48

約数和(自身を含む): 202617240

約数和(自身を除く): 121697440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31123, 62246, 124492, 155615, 248984, 311230, 404599, 622460, 778075, 809198, 1244920, 1556150, 1618396, 2022995, 3112300, 3236792, 4045990, 6224600, 8091980, 10114975, 16183960, 20229950, 40459900, 80919800]

約数ペア:

[(1, 80919800), (2, 40459900), (4, 20229950), (5, 16183960), (8, 10114975), (10, 8091980), (13, 6224600), (20, 4045990), (25, 3236792), (26, 3112300), (40, 2022995), (50, 1618396), (52, 1556150), (65, 1244920), (100, 809198), (104, 778075), (130, 622460), (200, 404599), (260, 311230), (325, 248984), (520, 155615), (650, 124492), (1300, 62246), (2600, 31123)]