2021189680

素因数分解:

$2^4\times 5^1\times {\mathrm{25264871}}^1$

素因数の和:25264884

約数の個数: 20

約数和(自身を含む): 4699266192

約数和(自身を除く): 2678076512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25264871, 50529742, 101059484, 126324355, 202118968, 252648710, 404237936, 505297420, 1010594840, 2021189680]

約数ペア:

[(1, 2021189680), (2, 1010594840), (4, 505297420), (5, 404237936), (8, 252648710), (10, 202118968), (16, 126324355), (20, 101059484), (40, 50529742), (80, 25264871)]