1215620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 3077760

約数和(自身を除く): 1862140

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 457, 532, 665, 914, 1330, 1828, 2285, 2660, 3199, 4570, 6398, 8683, 9140, 12796, 15995, 17366, 31990, 34732, 43415, 60781, 63980, 86830, 121562, 173660, 243124, 303905, 607810, 1215620]

約数ペア:

[(1, 1215620), (2, 607810), (4, 303905), (5, 243124), (7, 173660), (10, 121562), (14, 86830), (19, 63980), (20, 60781), (28, 43415), (35, 34732), (38, 31990), (70, 17366), (76, 15995), (95, 12796), (133, 9140), (140, 8683), (190, 6398), (266, 4570), (380, 3199), (457, 2660), (532, 2285), (665, 1828), (914, 1330)]