520020689840

素因数分解:

$2^4\times 5^1\times {\mathrm{32563}}^1\times {\mathrm{199621}}^1$

素因数の和:232197

約数の個数: 40

約数和(自身を含む): 1209091290288

約数和(自身を除く): 689070600448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 32563, 65126, 130252, 162815, 199621, 260504, 325630, 399242, 521008, 651260, 798484, 998105, 1302520, 1596968, 1996210, 2605040, 3193936, 3992420, 7984840, 15969680, 6500258623, 13000517246, 26001034492, 32501293115, 52002068984, 65002586230, 104004137968, 130005172460, 260010344920, 520020689840]

約数ペア:

[(1, 520020689840), (2, 260010344920), (4, 130005172460), (5, 104004137968), (8, 65002586230), (10, 52002068984), (16, 32501293115), (20, 26001034492), (40, 13000517246), (80, 6500258623), (32563, 15969680), (65126, 7984840), (130252, 3992420), (162815, 3193936), (199621, 2605040), (260504, 1996210), (325630, 1596968), (399242, 1302520), (521008, 998105), (651260, 798484)]