18687720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{155731}}^1$

素因数の和:155745

約数の個数: 32

約数和(自身を含む): 56063520

約数和(自身を除く): 37375800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 155731, 311462, 467193, 622924, 778655, 934386, 1245848, 1557310, 1868772, 2335965, 3114620, 3737544, 4671930, 6229240, 9343860, 18687720]

約数ペア:

[(1, 18687720), (2, 9343860), (3, 6229240), (4, 4671930), (5, 3737544), (6, 3114620), (8, 2335965), (10, 1868772), (12, 1557310), (15, 1245848), (20, 934386), (24, 778655), (30, 622924), (40, 467193), (60, 311462), (120, 155731)]