18840010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38449}}^1$

素因数の和:38470

約数の個数: 24

約数和(自身を含む): 39449700

約数和(自身を除く): 20609690

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38449, 76898, 192245, 269143, 384490, 538286, 1345715, 1884001, 2691430, 3768002, 9420005, 18840010]

約数ペア:

[(1, 18840010), (2, 9420005), (5, 3768002), (7, 2691430), (10, 1884001), (14, 1345715), (35, 538286), (49, 384490), (70, 269143), (98, 192245), (245, 76898), (490, 38449)]