17898880

素因数分解:

$2^7\times 5^1\times {\mathrm{27967}}^1$

素因数の和:27986

約数の個数: 32

約数和(自身を含む): 42791040

約数和(自身を除く): 24892160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 27967, 55934, 111868, 139835, 223736, 279670, 447472, 559340, 894944, 1118680, 1789888, 2237360, 3579776, 4474720, 8949440, 17898880]

約数ペア:

[(1, 17898880), (2, 8949440), (4, 4474720), (5, 3579776), (8, 2237360), (10, 1789888), (16, 1118680), (20, 894944), (32, 559340), (40, 447472), (64, 279670), (80, 223736), (128, 139835), (160, 111868), (320, 55934), (640, 27967)]