16947020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 20550580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 290, 305, 479, 580, 610, 958, 1220, 1769, 1916, 2395, 3538, 4790, 7076, 8845, 9580, 13891, 17690, 27782, 29219, 35380, 55564, 58438, 69455, 116876, 138910, 146095, 277820, 292190, 584380, 847351, 1694702, 3389404, 4236755, 8473510, 16947020]

約数ペア:

[(1, 16947020), (2, 8473510), (4, 4236755), (5, 3389404), (10, 1694702), (20, 847351), (29, 584380), (58, 292190), (61, 277820), (116, 146095), (122, 138910), (145, 116876), (244, 69455), (290, 58438), (305, 55564), (479, 35380), (580, 29219), (610, 27782), (958, 17690), (1220, 13891), (1769, 9580), (1916, 8845), (2395, 7076), (3538, 4790)]