20417155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 7599485

約数列:

[1, 5, 11, 37, 55, 79, 127, 185, 395, 407, 635, 869, 1397, 2035, 2923, 4345, 4699, 6985, 10033, 14615, 23495, 32153, 50165, 51689, 110363, 160765, 258445, 371221, 551815, 1856105, 4083431, 20417155]

約数ペア:

[(1, 20417155), (5, 4083431), (11, 1856105), (37, 551815), (55, 371221), (79, 258445), (127, 160765), (185, 110363), (395, 51689), (407, 50165), (635, 32153), (869, 23495), (1397, 14615), (2035, 10033), (2923, 6985), (4345, 4699)]