18583280

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1559}}^1$

素因数の和:1721

約数の個数: 40

約数和(自身を含む): 43524000

約数和(自身を除く): 24940720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1559, 2384, 2980, 3118, 5960, 6236, 7795, 11920, 12472, 15590, 24944, 31180, 62360, 124720, 232291, 464582, 929164, 1161455, 1858328, 2322910, 3716656, 4645820, 9291640, 18583280]

約数ペア:

[(1, 18583280), (2, 9291640), (4, 4645820), (5, 3716656), (8, 2322910), (10, 1858328), (16, 1161455), (20, 929164), (40, 464582), (80, 232291), (149, 124720), (298, 62360), (596, 31180), (745, 24944), (1192, 15590), (1490, 12472), (1559, 11920), (2384, 7795), (2980, 6236), (3118, 5960)]