165715940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{637369}}^1$

素因数の和:637391

約数の個数: 24

約数和(自身を含む): 374773560

約数和(自身を除く): 209057620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 637369, 1274738, 2549476, 3186845, 6373690, 8285797, 12747380, 16571594, 33143188, 41428985, 82857970, 165715940]

約数ペア:

[(1, 165715940), (2, 82857970), (4, 41428985), (5, 33143188), (10, 16571594), (13, 12747380), (20, 8285797), (26, 6373690), (52, 3186845), (65, 2549476), (130, 1274738), (260, 637369)]