20206780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1733}}^1$

素因数の和:1806

約数の個数: 48

約数和(自身を含む): 47192544

約数和(自身を除く): 26985764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1733, 2332, 2915, 3466, 5830, 6932, 8665, 11660, 17330, 19063, 34660, 38126, 76252, 91849, 95315, 183698, 190630, 367396, 381260, 459245, 918490, 1010339, 1836980, 2020678, 4041356, 5051695, 10103390, 20206780]

約数ペア:

[(1, 20206780), (2, 10103390), (4, 5051695), (5, 4041356), (10, 2020678), (11, 1836980), (20, 1010339), (22, 918490), (44, 459245), (53, 381260), (55, 367396), (106, 190630), (110, 183698), (212, 95315), (220, 91849), (265, 76252), (530, 38126), (583, 34660), (1060, 19063), (1166, 17330), (1733, 11660), (2332, 8665), (2915, 6932), (3466, 5830)]