4991020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4091}}^1$

素因数の和:4161

約数の個数: 24

約数和(自身を含む): 10655568

約数和(自身を除く): 5664548

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 4091, 8182, 16364, 20455, 40910, 81820, 249551, 499102, 998204, 1247755, 2495510, 4991020]

約数ペア:

[(1, 4991020), (2, 2495510), (4, 1247755), (5, 998204), (10, 499102), (20, 249551), (61, 81820), (122, 40910), (244, 20455), (305, 16364), (610, 8182), (1220, 4091)]