22177720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{13523}}^1$

素因数の和:13575

約数の個数: 32

約数和(自身を含む): 51120720

約数和(自身を除く): 28943000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 13523, 27046, 54092, 67615, 108184, 135230, 270460, 540920, 554443, 1108886, 2217772, 2772215, 4435544, 5544430, 11088860, 22177720]

約数ペア:

[(1, 22177720), (2, 11088860), (4, 5544430), (5, 4435544), (8, 2772215), (10, 2217772), (20, 1108886), (40, 554443), (41, 540920), (82, 270460), (164, 135230), (205, 108184), (328, 67615), (410, 54092), (820, 27046), (1640, 13523)]