65004820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{577}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 140995008

約数和(自身を除く): 75990188

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 131, 172, 215, 262, 430, 524, 577, 655, 860, 1154, 1310, 2308, 2620, 2885, 5633, 5770, 11266, 11540, 22532, 24811, 28165, 49622, 56330, 75587, 99244, 112660, 124055, 151174, 248110, 302348, 377935, 496220, 755870, 1511740, 3250241, 6500482, 13000964, 16251205, 32502410, 65004820]

約数ペア:

[(1, 65004820), (2, 32502410), (4, 16251205), (5, 13000964), (10, 6500482), (20, 3250241), (43, 1511740), (86, 755870), (131, 496220), (172, 377935), (215, 302348), (262, 248110), (430, 151174), (524, 124055), (577, 112660), (655, 99244), (860, 75587), (1154, 56330), (1310, 49622), (2308, 28165), (2620, 24811), (2885, 22532), (5633, 11540), (5770, 11266)]