209210690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{8087}}^1$

素因数の和:8306

約数の個数: 32

約数和(自身を含む): 407635200

約数和(自身を除く): 198424510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2587, 5174, 8087, 12935, 16174, 25870, 40435, 80870, 105131, 210262, 525655, 1051310, 1609313, 3218626, 8046565, 16093130, 20921069, 41842138, 104605345, 209210690]

約数ペア:

[(1, 209210690), (2, 104605345), (5, 41842138), (10, 20921069), (13, 16093130), (26, 8046565), (65, 3218626), (130, 1609313), (199, 1051310), (398, 525655), (995, 210262), (1990, 105131), (2587, 80870), (5174, 40435), (8087, 25870), (12935, 16174)]