80774680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{288481}}^1$

素因数の和:288499

約数の個数: 32

約数和(自身を含む): 207707040

約数和(自身を除く): 126932360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 288481, 576962, 1153924, 1442405, 2019367, 2307848, 2884810, 4038734, 5769620, 8077468, 10096835, 11539240, 16154936, 20193670, 40387340, 80774680]

約数ペア:

[(1, 80774680), (2, 40387340), (4, 20193670), (5, 16154936), (7, 11539240), (8, 10096835), (10, 8077468), (14, 5769620), (20, 4038734), (28, 2884810), (35, 2307848), (40, 2019367), (56, 1442405), (70, 1153924), (140, 576962), (280, 288481)]