2154526480

素因数分解:

$2^4\times 5^1\times {\mathrm{26931581}}^1$

素因数の和:26931594

約数の個数: 20

約数和(自身を含む): 5009274252

約数和(自身を除く): 2854747772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26931581, 53863162, 107726324, 134657905, 215452648, 269315810, 430905296, 538631620, 1077263240, 2154526480]

約数ペア:

[(1, 2154526480), (2, 1077263240), (4, 538631620), (5, 430905296), (8, 269315810), (10, 215452648), (16, 134657905), (20, 107726324), (40, 53863162), (80, 26931581)]