19081760

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 26278240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 499, 956, 998, 1195, 1912, 1996, 2390, 2495, 3824, 3992, 4780, 4990, 7648, 7984, 9560, 9980, 15968, 19120, 19960, 38240, 39920, 79840, 119261, 238522, 477044, 596305, 954088, 1192610, 1908176, 2385220, 3816352, 4770440, 9540880, 19081760]

約数ペア:

[(1, 19081760), (2, 9540880), (4, 4770440), (5, 3816352), (8, 2385220), (10, 1908176), (16, 1192610), (20, 954088), (32, 596305), (40, 477044), (80, 238522), (160, 119261), (239, 79840), (478, 39920), (499, 38240), (956, 19960), (998, 19120), (1195, 15968), (1912, 9980), (1996, 9560), (2390, 7984), (2495, 7648), (3824, 4990), (3992, 4780)]