18804225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 35426304

約数和(自身を除く): 16622079

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 991, 1265, 1725, 2973, 3795, 4955, 6325, 10901, 14865, 18975, 22793, 24775, 32703, 54505, 68379, 74325, 113965, 163515, 250723, 272525, 341895, 569825, 752169, 817575, 1253615, 1709475, 3760845, 6268075, 18804225]

約数ペア:

[(1, 18804225), (3, 6268075), (5, 3760845), (11, 1709475), (15, 1253615), (23, 817575), (25, 752169), (33, 569825), (55, 341895), (69, 272525), (75, 250723), (115, 163515), (165, 113965), (253, 74325), (275, 68379), (345, 54505), (575, 32703), (759, 24775), (825, 22793), (991, 18975), (1265, 14865), (1725, 10901), (2973, 6325), (3795, 4955)]