27954545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 9784975

約数列:

[1, 5, 17, 23, 79, 85, 115, 181, 391, 395, 905, 1343, 1817, 1955, 3077, 4163, 6715, 9085, 14299, 15385, 20815, 30889, 70771, 71495, 154445, 243083, 328877, 353855, 1215415, 1644385, 5590909, 27954545]

約数ペア:

[(1, 27954545), (5, 5590909), (17, 1644385), (23, 1215415), (79, 353855), (85, 328877), (115, 243083), (181, 154445), (391, 71495), (395, 70771), (905, 30889), (1343, 20815), (1817, 15385), (1955, 14299), (3077, 9085), (4163, 6715)]