17388880

素因数分解:

$2^4\times 5^1\times {\mathrm{217361}}^1$

素因数の和:217374

約数の個数: 20

約数和(自身を含む): 40429332

約数和(自身を除く): 23040452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 217361, 434722, 869444, 1086805, 1738888, 2173610, 3477776, 4347220, 8694440, 17388880]

約数ペア:

[(1, 17388880), (2, 8694440), (4, 4347220), (5, 3477776), (8, 2173610), (10, 1738888), (16, 1086805), (20, 869444), (40, 434722), (80, 217361)]