26388280

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1567}}^1$

素因数の和:1999

約数の個数: 32

約数和(自身を含む): 59552640

約数和(自身を除く): 33164360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1567, 1684, 2105, 3134, 3368, 4210, 6268, 7835, 8420, 12536, 15670, 16840, 31340, 62680, 659707, 1319414, 2638828, 3298535, 5277656, 6597070, 13194140, 26388280]

約数ペア:

[(1, 26388280), (2, 13194140), (4, 6597070), (5, 5277656), (8, 3298535), (10, 2638828), (20, 1319414), (40, 659707), (421, 62680), (842, 31340), (1567, 16840), (1684, 15670), (2105, 12536), (3134, 8420), (3368, 7835), (4210, 6268)]