204418520

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{3253}}^1$

素因数の和:4835

約数の個数: 32

約数和(自身を含む): 460375920

約数和(自身を除く): 255957400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 3253, 6284, 6506, 7855, 12568, 13012, 15710, 16265, 26024, 31420, 32530, 62840, 65060, 130120, 5110463, 10220926, 20441852, 25552315, 40883704, 51104630, 102209260, 204418520]

約数ペア:

[(1, 204418520), (2, 102209260), (4, 51104630), (5, 40883704), (8, 25552315), (10, 20441852), (20, 10220926), (40, 5110463), (1571, 130120), (3142, 65060), (3253, 62840), (6284, 32530), (6506, 31420), (7855, 26024), (12568, 16265), (13012, 15710)]