18337160

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1021}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 41391000

約数和(自身を除く): 23053840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1021, 1796, 2042, 2245, 3592, 4084, 4490, 5105, 8168, 8980, 10210, 17960, 20420, 40840, 458429, 916858, 1833716, 2292145, 3667432, 4584290, 9168580, 18337160]

約数ペア:

[(1, 18337160), (2, 9168580), (4, 4584290), (5, 3667432), (8, 2292145), (10, 1833716), (20, 916858), (40, 458429), (449, 40840), (898, 20420), (1021, 17960), (1796, 10210), (2042, 8980), (2245, 8168), (3592, 5105), (4084, 4490)]