2021461480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{639703}}^1$

素因数の和:639793

約数の個数: 32

約数和(自身を含む): 4605868800

約数和(自身を除く): 2584407320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 639703, 1279406, 2558812, 3198515, 5117624, 6397030, 12794060, 25588120, 50536537, 101073074, 202146148, 252682685, 404292296, 505365370, 1010730740, 2021461480]

約数ペア:

[(1, 2021461480), (2, 1010730740), (4, 505365370), (5, 404292296), (8, 252682685), (10, 202146148), (20, 101073074), (40, 50536537), (79, 25588120), (158, 12794060), (316, 6397030), (395, 5117624), (632, 3198515), (790, 2558812), (1580, 1279406), (3160, 639703)]