8720218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 15135120

約数和(自身を除く): 6414902

約数列:

[1, 2, 13, 17, 26, 34, 109, 181, 218, 221, 362, 442, 1417, 1853, 2353, 2834, 3077, 3706, 4706, 6154, 19729, 24089, 39458, 40001, 48178, 80002, 256477, 335393, 512954, 670786, 4360109, 8720218]

約数ペア:

[(1, 8720218), (2, 4360109), (13, 670786), (17, 512954), (26, 335393), (34, 256477), (109, 80002), (181, 48178), (218, 40001), (221, 39458), (362, 24089), (442, 19729), (1417, 6154), (1853, 4706), (2353, 3706), (2834, 3077)]