57431960

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3691}}^1$

素因数の和:4091

約数の個数: 32

約数和(自身を含む): 129589200

約数和(自身を除く): 72157240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3691, 3890, 7382, 7780, 14764, 15560, 18455, 29528, 36910, 73820, 147640, 1435799, 2871598, 5743196, 7178995, 11486392, 14357990, 28715980, 57431960]

約数ペア:

[(1, 57431960), (2, 28715980), (4, 14357990), (5, 11486392), (8, 7178995), (10, 5743196), (20, 2871598), (40, 1435799), (389, 147640), (778, 73820), (1556, 36910), (1945, 29528), (3112, 18455), (3691, 15560), (3890, 14764), (7382, 7780)]