1271420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 2694048

約数和(自身を除く): 1422628

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 421, 604, 755, 842, 1510, 1684, 2105, 3020, 4210, 8420, 63571, 127142, 254284, 317855, 635710, 1271420]

約数ペア:

[(1, 1271420), (2, 635710), (4, 317855), (5, 254284), (10, 127142), (20, 63571), (151, 8420), (302, 4210), (421, 3020), (604, 2105), (755, 1684), (842, 1510)]