289702999480

素因数分解:

$2^3\times 5^1\times {\mathrm{7242574987}}^1$

素因数の和:7242574998

約数の個数: 16

約数和(自身を含む): 651831748920

約数和(自身を除く): 362128749440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7242574987, 14485149974, 28970299948, 36212874935, 57940599896, 72425749870, 144851499740, 289702999480]

約数ペア:

[(1, 289702999480), (2, 144851499740), (4, 72425749870), (5, 57940599896), (8, 36212874935), (10, 28970299948), (20, 14485149974), (40, 7242574987)]