214619620

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{16741}}^1$

素因数の和:17391

約数の個数: 24

約数和(自身を含む): 451431288

約数和(自身を除く): 236811668

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 16741, 33482, 66964, 83705, 167410, 334820, 10730981, 21461962, 42923924, 53654905, 107309810, 214619620]

約数ペア:

[(1, 214619620), (2, 107309810), (4, 53654905), (5, 42923924), (10, 21461962), (20, 10730981), (641, 334820), (1282, 167410), (2564, 83705), (3205, 66964), (6410, 33482), (12820, 16741)]