123031280

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{21067}}^1$

素因数の和:21153

約数の個数: 40

約数和(自身を含む): 289979952

約数和(自身を除く): 166948672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 21067, 42134, 84268, 105335, 168536, 210670, 337072, 421340, 842680, 1537891, 1685360, 3075782, 6151564, 7689455, 12303128, 15378910, 24606256, 30757820, 61515640, 123031280]

約数ペア:

[(1, 123031280), (2, 61515640), (4, 30757820), (5, 24606256), (8, 15378910), (10, 12303128), (16, 7689455), (20, 6151564), (40, 3075782), (73, 1685360), (80, 1537891), (146, 842680), (292, 421340), (365, 337072), (584, 210670), (730, 168536), (1168, 105335), (1460, 84268), (2920, 42134), (5840, 21067)]