8199140

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2081}}^1$

素因数の和:2287

約数の個数: 24

約数和(自身を含む): 17313912

約数和(自身を除く): 9114772

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 2081, 3940, 4162, 8324, 10405, 20810, 41620, 409957, 819914, 1639828, 2049785, 4099570, 8199140]

約数ペア:

[(1, 8199140), (2, 4099570), (4, 2049785), (5, 1639828), (10, 819914), (20, 409957), (197, 41620), (394, 20810), (788, 10405), (985, 8324), (1970, 4162), (2081, 3940)]