18560815

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 29187648

約数和(自身を除く): 10626833

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 113, 133, 247, 361, 455, 565, 665, 791, 1235, 1469, 1729, 1805, 2147, 2527, 3955, 4693, 7345, 8645, 10283, 10735, 12635, 15029, 23465, 27911, 32851, 40793, 51415, 75145, 139555, 164255, 195377, 203965, 285551, 530309, 976885, 1427755, 2651545, 3712163, 18560815]

約数ペア:

[(1, 18560815), (5, 3712163), (7, 2651545), (13, 1427755), (19, 976885), (35, 530309), (65, 285551), (91, 203965), (95, 195377), (113, 164255), (133, 139555), (247, 75145), (361, 51415), (455, 40793), (565, 32851), (665, 27911), (791, 23465), (1235, 15029), (1469, 12635), (1729, 10735), (1805, 10283), (2147, 8645), (2527, 7345), (3955, 4693)]