22919240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1361}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 51728760

約数和(自身を除く): 28809520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1361, 1684, 2105, 2722, 3368, 4210, 5444, 6805, 8420, 10888, 13610, 16840, 27220, 54440, 572981, 1145962, 2291924, 2864905, 4583848, 5729810, 11459620, 22919240]

約数ペア:

[(1, 22919240), (2, 11459620), (4, 5729810), (5, 4583848), (8, 2864905), (10, 2291924), (20, 1145962), (40, 572981), (421, 54440), (842, 27220), (1361, 16840), (1684, 13610), (2105, 10888), (2722, 8420), (3368, 6805), (4210, 5444)]