40903120

素因数分解:

$2^4\times 5^1\times {\mathrm{511289}}^1$

素因数の和:511302

約数の個数: 20

約数和(自身を含む): 95099940

約数和(自身を除く): 54196820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511289, 1022578, 2045156, 2556445, 4090312, 5112890, 8180624, 10225780, 20451560, 40903120]

約数ペア:

[(1, 40903120), (2, 20451560), (4, 10225780), (5, 8180624), (8, 5112890), (10, 4090312), (16, 2556445), (20, 2045156), (40, 1022578), (80, 511289)]