20766850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 42622272

約数和(自身を除く): 21855422

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 743, 1075, 1118, 1486, 2150, 2795, 3715, 5590, 7430, 9659, 13975, 18575, 19318, 27950, 31949, 37150, 48295, 63898, 96590, 159745, 241475, 319490, 415337, 482950, 798725, 830674, 1597450, 2076685, 4153370, 10383425, 20766850]

約数ペア:

[(1, 20766850), (2, 10383425), (5, 4153370), (10, 2076685), (13, 1597450), (25, 830674), (26, 798725), (43, 482950), (50, 415337), (65, 319490), (86, 241475), (130, 159745), (215, 96590), (325, 63898), (430, 48295), (559, 37150), (650, 31949), (743, 27950), (1075, 19318), (1118, 18575), (1486, 13975), (2150, 9659), (2795, 7430), (3715, 5590)]