18870764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 20078356

約数列:

[1, 2, 4, 11, 22, 23, 29, 44, 46, 58, 92, 116, 253, 319, 506, 638, 643, 667, 1012, 1276, 1286, 1334, 2572, 2668, 7073, 7337, 14146, 14674, 14789, 18647, 28292, 29348, 29578, 37294, 59156, 74588, 162679, 205117, 325358, 410234, 428881, 650716, 820468, 857762, 1715524, 4717691, 9435382, 18870764]

約数ペア:

[(1, 18870764), (2, 9435382), (4, 4717691), (11, 1715524), (22, 857762), (23, 820468), (29, 650716), (44, 428881), (46, 410234), (58, 325358), (92, 205117), (116, 162679), (253, 74588), (319, 59156), (506, 37294), (638, 29578), (643, 29348), (667, 28292), (1012, 18647), (1276, 14789), (1286, 14674), (1334, 14146), (2572, 7337), (2668, 7073)]