18847880

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2467}}^1$

素因数の和:2669

約数の個数: 32

約数和(自身を含む): 42647040

約数和(自身を除く): 23799160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2467, 3820, 4934, 7640, 9868, 12335, 19736, 24670, 49340, 98680, 471197, 942394, 1884788, 2355985, 3769576, 4711970, 9423940, 18847880]

約数ペア:

[(1, 18847880), (2, 9423940), (4, 4711970), (5, 3769576), (8, 2355985), (10, 1884788), (20, 942394), (40, 471197), (191, 98680), (382, 49340), (764, 24670), (955, 19736), (1528, 12335), (1910, 9868), (2467, 7640), (3820, 4934)]