19617620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3877}}^1$

素因数の和:3920

約数の個数: 48

約数和(自身を含む): 46908288

約数和(自身を除く): 27290668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 3877, 5060, 7754, 15508, 19385, 38770, 42647, 77540, 85294, 89171, 170588, 178342, 213235, 356684, 426470, 445855, 852940, 891710, 980881, 1783420, 1961762, 3923524, 4904405, 9808810, 19617620]

約数ペア:

[(1, 19617620), (2, 9808810), (4, 4904405), (5, 3923524), (10, 1961762), (11, 1783420), (20, 980881), (22, 891710), (23, 852940), (44, 445855), (46, 426470), (55, 356684), (92, 213235), (110, 178342), (115, 170588), (220, 89171), (230, 85294), (253, 77540), (460, 42647), (506, 38770), (1012, 19385), (1265, 15508), (2530, 7754), (3877, 5060)]