18879660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1979}}^1$

素因数の和:2047

約数の個数: 72

約数和(自身を含む): 58378320

約数和(自身を除く): 39498660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 1979, 2385, 3180, 3958, 4770, 5937, 7916, 9540, 9895, 11874, 17811, 19790, 23748, 29685, 35622, 39580, 59370, 71244, 89055, 104887, 118740, 178110, 209774, 314661, 356220, 419548, 524435, 629322, 943983, 1048870, 1258644, 1573305, 1887966, 2097740, 3146610, 3775932, 4719915, 6293220, 9439830, 18879660]

約数ペア:

[(1, 18879660), (2, 9439830), (3, 6293220), (4, 4719915), (5, 3775932), (6, 3146610), (9, 2097740), (10, 1887966), (12, 1573305), (15, 1258644), (18, 1048870), (20, 943983), (30, 629322), (36, 524435), (45, 419548), (53, 356220), (60, 314661), (90, 209774), (106, 178110), (159, 118740), (180, 104887), (212, 89055), (265, 71244), (318, 59370), (477, 39580), (530, 35622), (636, 29685), (795, 23748), (954, 19790), (1060, 17811), (1590, 11874), (1908, 9895), (1979, 9540), (2385, 7916), (3180, 5937), (3958, 4770)]