90876440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61403}}^1$

素因数の和:61451

約数の個数: 32

約数和(自身を含む): 210001680

約数和(自身を除く): 119125240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 61403, 122806, 245612, 307015, 491224, 614030, 1228060, 2271911, 2456120, 4543822, 9087644, 11359555, 18175288, 22719110, 45438220, 90876440]

約数ペア:

[(1, 90876440), (2, 45438220), (4, 22719110), (5, 18175288), (8, 11359555), (10, 9087644), (20, 4543822), (37, 2456120), (40, 2271911), (74, 1228060), (148, 614030), (185, 491224), (296, 307015), (370, 245612), (740, 122806), (1480, 61403)]