20150830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 24201170

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 109, 133, 139, 190, 218, 266, 278, 545, 665, 695, 763, 973, 1090, 1330, 1390, 1526, 1946, 2071, 2641, 3815, 4142, 4865, 5282, 7630, 9730, 10355, 13205, 14497, 15151, 18487, 20710, 26410, 28994, 30302, 36974, 72485, 75755, 92435, 106057, 144970, 151510, 184870, 212114, 287869, 530285, 575738, 1060570, 1439345, 2015083, 2878690, 4030166, 10075415, 20150830]

約数ペア:

[(1, 20150830), (2, 10075415), (5, 4030166), (7, 2878690), (10, 2015083), (14, 1439345), (19, 1060570), (35, 575738), (38, 530285), (70, 287869), (95, 212114), (109, 184870), (133, 151510), (139, 144970), (190, 106057), (218, 92435), (266, 75755), (278, 72485), (545, 36974), (665, 30302), (695, 28994), (763, 26410), (973, 20710), (1090, 18487), (1330, 15151), (1390, 14497), (1526, 13205), (1946, 10355), (2071, 9730), (2641, 7630), (3815, 5282), (4142, 4865)]