280450

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 24

約数和(自身を含む): 535680

約数和(自身を除く): 255230

約数列:

[1, 2, 5, 10, 25, 50, 71, 79, 142, 158, 355, 395, 710, 790, 1775, 1975, 3550, 3950, 5609, 11218, 28045, 56090, 140225, 280450]

約数ペア:

[(1, 280450), (2, 140225), (5, 56090), (10, 28045), (25, 11218), (50, 5609), (71, 3950), (79, 3550), (142, 1975), (158, 1775), (355, 790), (395, 710)]