90440420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{646003}}^1$

素因数の和:646019

約数の個数: 24

約数和(自身を含む): 217057344

約数和(自身を除く): 126616924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 646003, 1292006, 2584012, 3230015, 4522021, 6460030, 9044042, 12920060, 18088084, 22610105, 45220210, 90440420]

約数ペア:

[(1, 90440420), (2, 45220210), (4, 22610105), (5, 18088084), (7, 12920060), (10, 9044042), (14, 6460030), (20, 4522021), (28, 3230015), (35, 2584012), (70, 1292006), (140, 646003)]