30418760

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5471}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 68947200

約数和(自身を除く): 38528440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5471, 5560, 10942, 21884, 27355, 43768, 54710, 109420, 218840, 760469, 1520938, 3041876, 3802345, 6083752, 7604690, 15209380, 30418760]

約数ペア:

[(1, 30418760), (2, 15209380), (4, 7604690), (5, 6083752), (8, 3802345), (10, 3041876), (20, 1520938), (40, 760469), (139, 218840), (278, 109420), (556, 54710), (695, 43768), (1112, 27355), (1390, 21884), (2780, 10942), (5471, 5560)]