2019980860

素因数分解:

$2^2\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{78721}}^1$

素因数の和:80013

約数の個数: 24

約数和(自身を含む): 4245320016

約数和(自身を除く): 2225339156

約数列:

[1, 2, 4, 5, 10, 20, 1283, 2566, 5132, 6415, 12830, 25660, 78721, 157442, 314884, 393605, 787210, 1574420, 100999043, 201998086, 403996172, 504995215, 1009990430, 2019980860]

約数ペア:

[(1, 2019980860), (2, 1009990430), (4, 504995215), (5, 403996172), (10, 201998086), (20, 100999043), (1283, 1574420), (2566, 787210), (5132, 393605), (6415, 314884), (12830, 157442), (25660, 78721)]