18758360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 44366400

約数和(自身を除く): 25608040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 103, 116, 145, 157, 206, 232, 290, 314, 412, 515, 580, 628, 785, 824, 1030, 1160, 1256, 1570, 2060, 2987, 3140, 4120, 4553, 5974, 6280, 9106, 11948, 14935, 16171, 18212, 22765, 23896, 29870, 32342, 36424, 45530, 59740, 64684, 80855, 91060, 119480, 129368, 161710, 182120, 323420, 468959, 646840, 937918, 1875836, 2344795, 3751672, 4689590, 9379180, 18758360]

約数ペア:

[(1, 18758360), (2, 9379180), (4, 4689590), (5, 3751672), (8, 2344795), (10, 1875836), (20, 937918), (29, 646840), (40, 468959), (58, 323420), (103, 182120), (116, 161710), (145, 129368), (157, 119480), (206, 91060), (232, 80855), (290, 64684), (314, 59740), (412, 45530), (515, 36424), (580, 32342), (628, 29870), (785, 23896), (824, 22765), (1030, 18212), (1160, 16171), (1256, 14935), (1570, 11948), (2060, 9106), (2987, 6280), (3140, 5974), (4120, 4553)]