79007920

素因数分解:

$2^4\times 5^1\times {\mathrm{987599}}^1$

素因数の和:987612

約数の個数: 20

約数和(自身を含む): 183693600

約数和(自身を除く): 104685680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 987599, 1975198, 3950396, 4937995, 7900792, 9875990, 15801584, 19751980, 39503960, 79007920]

約数ペア:

[(1, 79007920), (2, 39503960), (4, 19751980), (5, 15801584), (8, 9875990), (10, 7900792), (16, 4937995), (20, 3950396), (40, 1975198), (80, 987599)]