218201240

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{42953}}^1$

素因数の和:43091

約数の個数: 32

約数和(自身を含む): 494830080

約数和(自身を除く): 276628840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 42953, 85906, 171812, 214765, 343624, 429530, 859060, 1718120, 5455031, 10910062, 21820124, 27275155, 43640248, 54550310, 109100620, 218201240]

約数ペア:

[(1, 218201240), (2, 109100620), (4, 54550310), (5, 43640248), (8, 27275155), (10, 21820124), (20, 10910062), (40, 5455031), (127, 1718120), (254, 859060), (508, 429530), (635, 343624), (1016, 214765), (1270, 171812), (2540, 85906), (5080, 42953)]