18055720

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1873}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 40815720

約数和(自身を除く): 22760000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1873, 1928, 2410, 3746, 4820, 7492, 9365, 9640, 14984, 18730, 37460, 74920, 451393, 902786, 1805572, 2256965, 3611144, 4513930, 9027860, 18055720]

約数ペア:

[(1, 18055720), (2, 9027860), (4, 4513930), (5, 3611144), (8, 2256965), (10, 1805572), (20, 902786), (40, 451393), (241, 74920), (482, 37460), (964, 18730), (1205, 14984), (1873, 9640), (1928, 9365), (2410, 7492), (3746, 4820)]