68441620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{20249}}^1$

素因数の和:20284

約数の個数: 36

約数和(自身を含む): 155641500

約数和(自身を除く): 87199880

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 20249, 40498, 80996, 101245, 202490, 263237, 404980, 526474, 1052948, 1316185, 2632370, 3422081, 5264740, 6844162, 13688324, 17110405, 34220810, 68441620]

約数ペア:

[(1, 68441620), (2, 34220810), (4, 17110405), (5, 13688324), (10, 6844162), (13, 5264740), (20, 3422081), (26, 2632370), (52, 1316185), (65, 1052948), (130, 526474), (169, 404980), (260, 263237), (338, 202490), (676, 101245), (845, 80996), (1690, 40498), (3380, 20249)]