256465510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{379}}^1\times {\mathrm{1381}}^1$

素因数の和:1781

約数の個数: 48

約数和(自身を含む): 538814160

約数和(自身を除く): 282348650

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 379, 490, 758, 1381, 1895, 2653, 2762, 3790, 5306, 6905, 9667, 13265, 13810, 18571, 19334, 26530, 37142, 48335, 67669, 92855, 96670, 135338, 185710, 338345, 523399, 676690, 1046798, 2616995, 3663793, 5233990, 7327586, 18318965, 25646551, 36637930, 51293102, 128232755, 256465510]

約数ペア:

[(1, 256465510), (2, 128232755), (5, 51293102), (7, 36637930), (10, 25646551), (14, 18318965), (35, 7327586), (49, 5233990), (70, 3663793), (98, 2616995), (245, 1046798), (379, 676690), (490, 523399), (758, 338345), (1381, 185710), (1895, 135338), (2653, 96670), (2762, 92855), (3790, 67669), (5306, 48335), (6905, 37142), (9667, 26530), (13265, 19334), (13810, 18571)]