18465880

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2417}}^1$

素因数の和:2619

約数の個数: 32

約数和(自身を含む): 41783040

約数和(自身を除く): 23317160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2417, 3820, 4834, 7640, 9668, 12085, 19336, 24170, 48340, 96680, 461647, 923294, 1846588, 2308235, 3693176, 4616470, 9232940, 18465880]

約数ペア:

[(1, 18465880), (2, 9232940), (4, 4616470), (5, 3693176), (8, 2308235), (10, 1846588), (20, 923294), (40, 461647), (191, 96680), (382, 48340), (764, 24170), (955, 19336), (1528, 12085), (1910, 9668), (2417, 7640), (3820, 4834)]