31706460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{499}}^1$

素因数の和:867

約数の個数: 72

約数和(自身を含む): 96642000

約数和(自身を除く): 64935540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 353, 499, 706, 998, 1059, 1412, 1497, 1765, 1996, 2118, 2495, 2994, 3177, 3530, 4236, 4491, 4990, 5295, 5988, 6354, 7060, 7485, 8982, 9980, 10590, 12708, 14970, 15885, 17964, 21180, 22455, 29940, 31770, 44910, 63540, 89820, 176147, 352294, 528441, 704588, 880735, 1056882, 1585323, 1761470, 2113764, 2642205, 3170646, 3522940, 5284410, 6341292, 7926615, 10568820, 15853230, 31706460]

約数ペア:

[(1, 31706460), (2, 15853230), (3, 10568820), (4, 7926615), (5, 6341292), (6, 5284410), (9, 3522940), (10, 3170646), (12, 2642205), (15, 2113764), (18, 1761470), (20, 1585323), (30, 1056882), (36, 880735), (45, 704588), (60, 528441), (90, 352294), (180, 176147), (353, 89820), (499, 63540), (706, 44910), (998, 31770), (1059, 29940), (1412, 22455), (1497, 21180), (1765, 17964), (1996, 15885), (2118, 14970), (2495, 12708), (2994, 10590), (3177, 9980), (3530, 8982), (4236, 7485), (4491, 7060), (4990, 6354), (5295, 5988)]