687739215

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{20551}}^1$

素因数の和:20679

約数の個数: 32

約数和(自身を含む): 1160119296

約数和(自身を除く): 472380081

約数列:

[1, 3, 5, 15, 23, 69, 97, 115, 291, 345, 485, 1455, 2231, 6693, 11155, 20551, 33465, 61653, 102755, 308265, 472673, 1418019, 1993447, 2363365, 5980341, 7090095, 9967235, 29901705, 45849281, 137547843, 229246405, 687739215]

約数ペア:

[(1, 687739215), (3, 229246405), (5, 137547843), (15, 45849281), (23, 29901705), (69, 9967235), (97, 7090095), (115, 5980341), (291, 2363365), (345, 1993447), (485, 1418019), (1455, 472673), (2231, 308265), (6693, 102755), (11155, 61653), (20551, 33465)]