216938740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137303}}^1$

素因数の和:137391

約数の個数: 24

約数和(自身を含む): 461341440

約数和(自身を除く): 244402700

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 137303, 274606, 549212, 686515, 1373030, 2746060, 10846937, 21693874, 43387748, 54234685, 108469370, 216938740]

約数ペア:

[(1, 216938740), (2, 108469370), (4, 54234685), (5, 43387748), (10, 21693874), (20, 10846937), (79, 2746060), (158, 1373030), (316, 686515), (395, 549212), (790, 274606), (1580, 137303)]