627297680

素因数分解:

$2^4\times 5^1\times {\mathrm{7841221}}^1$

素因数の和:7841234

約数の個数: 20

約数和(自身を含む): 1458467292

約数和(自身を除く): 831169612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7841221, 15682442, 31364884, 39206105, 62729768, 78412210, 125459536, 156824420, 313648840, 627297680]

約数ペア:

[(1, 627297680), (2, 313648840), (4, 156824420), (5, 125459536), (8, 78412210), (10, 62729768), (16, 39206105), (20, 31364884), (40, 15682442), (80, 7841221)]