280855420

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{110573}}^1$

素因数の和:110709

約数の個数: 24

約数和(自身を含む): 594445824

約数和(自身を除く): 313590404

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 110573, 221146, 442292, 552865, 1105730, 2211460, 14042771, 28085542, 56171084, 70213855, 140427710, 280855420]

約数ペア:

[(1, 280855420), (2, 140427710), (4, 70213855), (5, 56171084), (10, 28085542), (20, 14042771), (127, 2211460), (254, 1105730), (508, 552865), (635, 442292), (1270, 221146), (2540, 110573)]