199965280

素因数分解:

$2^5\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1409}}^1$

素因数の和:2311

約数の個数: 48

約数和(自身を含む): 473286240

約数和(自身を除く): 273320960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 887, 1409, 1774, 2818, 3548, 4435, 5636, 7045, 7096, 8870, 11272, 14090, 14192, 17740, 22544, 28180, 28384, 35480, 45088, 56360, 70960, 112720, 141920, 225440, 1249783, 2499566, 4999132, 6248915, 9998264, 12497830, 19996528, 24995660, 39993056, 49991320, 99982640, 199965280]

約数ペア:

[(1, 199965280), (2, 99982640), (4, 49991320), (5, 39993056), (8, 24995660), (10, 19996528), (16, 12497830), (20, 9998264), (32, 6248915), (40, 4999132), (80, 2499566), (160, 1249783), (887, 225440), (1409, 141920), (1774, 112720), (2818, 70960), (3548, 56360), (4435, 45088), (5636, 35480), (7045, 28384), (7096, 28180), (8870, 22544), (11272, 17740), (14090, 14192)]