1764672020

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{209581}}^1$

素因数の和:210011

約数の個数: 24

約数和(自身を含む): 3714631368

約数和(自身を除く): 1949959348

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 209581, 419162, 838324, 1047905, 2095810, 4191620, 88233601, 176467202, 352934404, 441168005, 882336010, 1764672020]

約数ペア:

[(1, 1764672020), (2, 882336010), (4, 441168005), (5, 352934404), (10, 176467202), (20, 88233601), (421, 4191620), (842, 2095810), (1684, 1047905), (2105, 838324), (4210, 419162), (8420, 209581)]