18016760

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4373}}^1$

素因数の和:4487

約数の個数: 32

約数和(自身を含む): 40940640

約数和(自身を除く): 22923880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4373, 8746, 17492, 21865, 34984, 43730, 87460, 174920, 450419, 900838, 1801676, 2252095, 3603352, 4504190, 9008380, 18016760]

約数ペア:

[(1, 18016760), (2, 9008380), (4, 4504190), (5, 3603352), (8, 2252095), (10, 1801676), (20, 900838), (40, 450419), (103, 174920), (206, 87460), (412, 43730), (515, 34984), (824, 21865), (1030, 17492), (2060, 8746), (4120, 4373)]