40542820

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{1907}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 85264704

約数和(自身を除く): 44721884

約数列:

[1, 2, 4, 5, 10, 20, 1063, 1907, 2126, 3814, 4252, 5315, 7628, 9535, 10630, 19070, 21260, 38140, 2027141, 4054282, 8108564, 10135705, 20271410, 40542820]

約数ペア:

[(1, 40542820), (2, 20271410), (4, 10135705), (5, 8108564), (10, 4054282), (20, 2027141), (1063, 38140), (1907, 21260), (2126, 19070), (3814, 10630), (4252, 9535), (5315, 7628)]