18435160

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{719}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 41601600

約数和(自身を除く): 23166440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 719, 1282, 1438, 2564, 2876, 3205, 3595, 5128, 5752, 6410, 7190, 12820, 14380, 25640, 28760, 460879, 921758, 1843516, 2304395, 3687032, 4608790, 9217580, 18435160]

約数ペア:

[(1, 18435160), (2, 9217580), (4, 4608790), (5, 3687032), (8, 2304395), (10, 1843516), (20, 921758), (40, 460879), (641, 28760), (719, 25640), (1282, 14380), (1438, 12820), (2564, 7190), (2876, 6410), (3205, 5752), (3595, 5128)]