15891620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{193}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 35199360

約数和(自身を除く): 19307740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 193, 230, 358, 386, 460, 716, 772, 895, 965, 1790, 1930, 3580, 3860, 4117, 4439, 8234, 8878, 16468, 17756, 20585, 22195, 34547, 41170, 44390, 69094, 82340, 88780, 138188, 172735, 345470, 690940, 794581, 1589162, 3178324, 3972905, 7945810, 15891620]

約数ペア:

[(1, 15891620), (2, 7945810), (4, 3972905), (5, 3178324), (10, 1589162), (20, 794581), (23, 690940), (46, 345470), (92, 172735), (115, 138188), (179, 88780), (193, 82340), (230, 69094), (358, 44390), (386, 41170), (460, 34547), (716, 22195), (772, 20585), (895, 17756), (965, 16468), (1790, 8878), (1930, 8234), (3580, 4439), (3860, 4117)]