20039348

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 44483712

約数和(自身を除く): 24444364

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 37, 46, 58, 74, 92, 116, 148, 161, 203, 259, 322, 406, 518, 644, 667, 812, 841, 851, 1036, 1073, 1334, 1682, 1702, 2146, 2668, 3364, 3404, 4292, 4669, 5887, 5957, 7511, 9338, 11774, 11914, 15022, 18676, 19343, 23548, 23828, 24679, 30044, 31117, 38686, 49358, 62234, 77372, 98716, 124468, 135401, 172753, 217819, 270802, 345506, 435638, 541604, 691012, 715691, 871276, 1431382, 2862764, 5009837, 10019674, 20039348]

約数ペア:

[(1, 20039348), (2, 10019674), (4, 5009837), (7, 2862764), (14, 1431382), (23, 871276), (28, 715691), (29, 691012), (37, 541604), (46, 435638), (58, 345506), (74, 270802), (92, 217819), (116, 172753), (148, 135401), (161, 124468), (203, 98716), (259, 77372), (322, 62234), (406, 49358), (518, 38686), (644, 31117), (667, 30044), (812, 24679), (841, 23828), (851, 23548), (1036, 19343), (1073, 18676), (1334, 15022), (1682, 11914), (1702, 11774), (2146, 9338), (2668, 7511), (3364, 5957), (3404, 5887), (4292, 4669)]