81193060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{312281}}^1$

素因数の和:312303

約数の個数: 24

約数和(自身を含む): 183621816

約数和(自身を除く): 102428756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 312281, 624562, 1249124, 1561405, 3122810, 4059653, 6245620, 8119306, 16238612, 20298265, 40596530, 81193060]

約数ペア:

[(1, 81193060), (2, 40596530), (4, 20298265), (5, 16238612), (10, 8119306), (13, 6245620), (20, 4059653), (26, 3122810), (52, 1561405), (65, 1249124), (130, 624562), (260, 312281)]