91521640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{326863}}^1$

素因数の和:326881

約数の個数: 32

約数和(自身を含む): 235342080

約数和(自身を除く): 143820440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 326863, 653726, 1307452, 1634315, 2288041, 2614904, 3268630, 4576082, 6537260, 9152164, 11440205, 13074520, 18304328, 22880410, 45760820, 91521640]

約数ペア:

[(1, 91521640), (2, 45760820), (4, 22880410), (5, 18304328), (7, 13074520), (8, 11440205), (10, 9152164), (14, 6537260), (20, 4576082), (28, 3268630), (35, 2614904), (40, 2288041), (56, 1634315), (70, 1307452), (140, 653726), (280, 326863)]