4217020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 9555840

約数和(自身を除く): 5338820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 157, 158, 170, 314, 316, 340, 395, 628, 785, 790, 1343, 1570, 1580, 2669, 2686, 3140, 5338, 5372, 6715, 10676, 12403, 13345, 13430, 24806, 26690, 26860, 49612, 53380, 62015, 124030, 210851, 248060, 421702, 843404, 1054255, 2108510, 4217020]

約数ペア:

[(1, 4217020), (2, 2108510), (4, 1054255), (5, 843404), (10, 421702), (17, 248060), (20, 210851), (34, 124030), (68, 62015), (79, 53380), (85, 49612), (157, 26860), (158, 26690), (170, 24806), (314, 13430), (316, 13345), (340, 12403), (395, 10676), (628, 6715), (785, 5372), (790, 5338), (1343, 3140), (1570, 2686), (1580, 2669)]