639276

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 1693440

約数和(自身を除く): 1054164

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 29, 33, 44, 58, 66, 87, 116, 132, 167, 174, 319, 334, 348, 501, 638, 668, 957, 1002, 1276, 1837, 1914, 2004, 3674, 3828, 4843, 5511, 7348, 9686, 11022, 14529, 19372, 22044, 29058, 53273, 58116, 106546, 159819, 213092, 319638, 639276]

約数ペア:

[(1, 639276), (2, 319638), (3, 213092), (4, 159819), (6, 106546), (11, 58116), (12, 53273), (22, 29058), (29, 22044), (33, 19372), (44, 14529), (58, 11022), (66, 9686), (87, 7348), (116, 5511), (132, 4843), (167, 3828), (174, 3674), (319, 2004), (334, 1914), (348, 1837), (501, 1276), (638, 1002), (668, 957)]