987809975

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{11071}}^1$

素因数の和:11207

約数の個数: 24

約数和(自身を含む): 1268585472

約数和(自身を除く): 280775497

約数列:

[1, 5, 25, 43, 83, 215, 415, 1075, 2075, 3569, 11071, 17845, 55355, 89225, 276775, 476053, 918893, 2380265, 4594465, 11901325, 22972325, 39512399, 197561995, 987809975]

約数ペア:

[(1, 987809975), (5, 197561995), (25, 39512399), (43, 22972325), (83, 11901325), (215, 4594465), (415, 2380265), (1075, 918893), (2075, 476053), (3569, 276775), (11071, 89225), (17845, 55355)]