18639750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{857}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 48185280

約数和(自身を除く): 29545530

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 125, 145, 150, 174, 250, 290, 375, 435, 725, 750, 857, 870, 1450, 1714, 2175, 2571, 3625, 4285, 4350, 5142, 7250, 8570, 10875, 12855, 21425, 21750, 24853, 25710, 42850, 49706, 64275, 74559, 107125, 124265, 128550, 149118, 214250, 248530, 321375, 372795, 621325, 642750, 745590, 1242650, 1863975, 3106625, 3727950, 6213250, 9319875, 18639750]

約数ペア:

[(1, 18639750), (2, 9319875), (3, 6213250), (5, 3727950), (6, 3106625), (10, 1863975), (15, 1242650), (25, 745590), (29, 642750), (30, 621325), (50, 372795), (58, 321375), (75, 248530), (87, 214250), (125, 149118), (145, 128550), (150, 124265), (174, 107125), (250, 74559), (290, 64275), (375, 49706), (435, 42850), (725, 25710), (750, 24853), (857, 21750), (870, 21425), (1450, 12855), (1714, 10875), (2175, 8570), (2571, 7250), (3625, 5142), (4285, 4350)]