351749620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{247711}}^1$

素因数の和:247791

約数の個数: 24

約数和(自身を含む): 749081088

約数和(自身を除く): 397331468

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 247711, 495422, 990844, 1238555, 2477110, 4954220, 17587481, 35174962, 70349924, 87937405, 175874810, 351749620]

約数ペア:

[(1, 351749620), (2, 175874810), (4, 87937405), (5, 70349924), (10, 35174962), (20, 17587481), (71, 4954220), (142, 2477110), (284, 1238555), (355, 990844), (710, 495422), (1420, 247711)]