259628440

素因数分解:

$2^3\times 5^1\times {\mathrm{6490711}}^1$

素因数の和:6490722

約数の個数: 16

約数和(自身を含む): 584164080

約数和(自身を除く): 324535640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6490711, 12981422, 25962844, 32453555, 51925688, 64907110, 129814220, 259628440]

約数ペア:

[(1, 259628440), (2, 129814220), (4, 64907110), (5, 51925688), (8, 32453555), (10, 25962844), (20, 12981422), (40, 6490711)]