31020400

素因数分解:

$2^4\times 5^2\times {\mathrm{77551}}^1$

素因数の和:77569

約数の個数: 30

約数和(自身を含む): 74527472

約数和(自身を除く): 43507072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 77551, 155102, 310204, 387755, 620408, 775510, 1240816, 1551020, 1938775, 3102040, 3877550, 6204080, 7755100, 15510200, 31020400]

約数ペア:

[(1, 31020400), (2, 15510200), (4, 7755100), (5, 6204080), (8, 3877550), (10, 3102040), (16, 1938775), (20, 1551020), (25, 1240816), (40, 775510), (50, 620408), (80, 387755), (100, 310204), (200, 155102), (400, 77551)]