157020440

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{17293}}^1$

素因数の和:17531

約数の個数: 32

約数和(自身を含む): 354872880

約数和(自身を除く): 197852440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 9080, 17293, 34586, 69172, 86465, 138344, 172930, 345860, 691720, 3925511, 7851022, 15702044, 19627555, 31404088, 39255110, 78510220, 157020440]

約数ペア:

[(1, 157020440), (2, 78510220), (4, 39255110), (5, 31404088), (8, 19627555), (10, 15702044), (20, 7851022), (40, 3925511), (227, 691720), (454, 345860), (908, 172930), (1135, 138344), (1816, 86465), (2270, 69172), (4540, 34586), (9080, 17293)]