404431420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{185519}}^1$

素因数の和:185637

約数の個数: 24

約数和(自身を含む): 857102400

約数和(自身を除く): 452670980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 185519, 371038, 742076, 927595, 1855190, 3710380, 20221571, 40443142, 80886284, 101107855, 202215710, 404431420]

約数ペア:

[(1, 404431420), (2, 202215710), (4, 101107855), (5, 80886284), (10, 40443142), (20, 20221571), (109, 3710380), (218, 1855190), (436, 927595), (545, 742076), (1090, 371038), (2180, 185519)]