68811340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{264659}}^1$

素因数の和:264681

約数の個数: 24

約数和(自身を含む): 155620080

約数和(自身を除く): 86808740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 264659, 529318, 1058636, 1323295, 2646590, 3440567, 5293180, 6881134, 13762268, 17202835, 34405670, 68811340]

約数ペア:

[(1, 68811340), (2, 34405670), (4, 17202835), (5, 13762268), (10, 6881134), (13, 5293180), (20, 3440567), (26, 2646590), (52, 1323295), (65, 1058636), (130, 529318), (260, 264659)]