67281020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{47381}}^1$

素因数の和:47461

約数の個数: 24

約数和(自身を含む): 143283168

約数和(自身を除く): 76002148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 47381, 94762, 189524, 236905, 473810, 947620, 3364051, 6728102, 13456204, 16820255, 33640510, 67281020]

約数ペア:

[(1, 67281020), (2, 33640510), (4, 16820255), (5, 13456204), (10, 6728102), (20, 3364051), (71, 947620), (142, 473810), (284, 236905), (355, 189524), (710, 94762), (1420, 47381)]