2205174640

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{252887}}^1$

素因数の和:253009

約数の個数: 40

約数和(自身を含む): 5174088480

約数和(自身を除く): 2968913840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 252887, 505774, 1011548, 1264435, 2023096, 2528870, 4046192, 5057740, 10115480, 20230960, 27564683, 55129366, 110258732, 137823415, 220517464, 275646830, 441034928, 551293660, 1102587320, 2205174640]

約数ペア:

[(1, 2205174640), (2, 1102587320), (4, 551293660), (5, 441034928), (8, 275646830), (10, 220517464), (16, 137823415), (20, 110258732), (40, 55129366), (80, 27564683), (109, 20230960), (218, 10115480), (436, 5057740), (545, 4046192), (872, 2528870), (1090, 2023096), (1744, 1264435), (2180, 1011548), (4360, 505774), (8720, 252887)]