134464420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163981}}^1$

素因数の和:164031

約数の個数: 24

約数和(自身を含む): 289264248

約数和(自身を除く): 154799828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 163981, 327962, 655924, 819905, 1639810, 3279620, 6723221, 13446442, 26892884, 33616105, 67232210, 134464420]

約数ペア:

[(1, 134464420), (2, 67232210), (4, 33616105), (5, 26892884), (10, 13446442), (20, 6723221), (41, 3279620), (82, 1639810), (164, 819905), (205, 655924), (410, 327962), (820, 163981)]