3871220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4721}}^1$

素因数の和:4771

約数の個数: 24

約数和(自身を含む): 8329608

約数和(自身を除く): 4458388

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 4721, 9442, 18884, 23605, 47210, 94420, 193561, 387122, 774244, 967805, 1935610, 3871220]

約数ペア:

[(1, 3871220), (2, 1935610), (4, 967805), (5, 774244), (10, 387122), (20, 193561), (41, 94420), (82, 47210), (164, 23605), (205, 18884), (410, 9442), (820, 4721)]