2479420

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{821}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 5247648

約数和(自身を除く): 2768228

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 821, 1510, 1642, 3020, 3284, 4105, 8210, 16420, 123971, 247942, 495884, 619855, 1239710, 2479420]

約数ペア:

[(1, 2479420), (2, 1239710), (4, 619855), (5, 495884), (10, 247942), (20, 123971), (151, 16420), (302, 8210), (604, 4105), (755, 3284), (821, 3020), (1510, 1642)]