40495720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6211}}^1$

素因数の和:6385

約数の個数: 32

約数和(自身を含む): 91689120

約数和(自身を除く): 51193400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6211, 6520, 12422, 24844, 31055, 49688, 62110, 124220, 248440, 1012393, 2024786, 4049572, 5061965, 8099144, 10123930, 20247860, 40495720]

約数ペア:

[(1, 40495720), (2, 20247860), (4, 10123930), (5, 8099144), (8, 5061965), (10, 4049572), (20, 2024786), (40, 1012393), (163, 248440), (326, 124220), (652, 62110), (815, 49688), (1304, 31055), (1630, 24844), (3260, 12422), (6211, 6520)]