338813620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{214439}}^1$

素因数の和:214527

約数の個数: 24

約数和(自身を含む): 720518400

約数和(自身を除く): 381704780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 214439, 428878, 857756, 1072195, 2144390, 4288780, 16940681, 33881362, 67762724, 84703405, 169406810, 338813620]

約数ペア:

[(1, 338813620), (2, 169406810), (4, 84703405), (5, 67762724), (10, 33881362), (20, 16940681), (79, 4288780), (158, 2144390), (316, 1072195), (395, 857756), (790, 428878), (1580, 214439)]