1620255815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^2\times {\mathrm{821}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 2046937824

約数和(自身を除く): 426682009

約数列:

[1, 5, 23, 115, 131, 655, 821, 3013, 4105, 15065, 17161, 18883, 85805, 94415, 107551, 394703, 537755, 1973515, 2473673, 12368365, 14089181, 70445905, 324051163, 1620255815]

約数ペア:

[(1, 1620255815), (5, 324051163), (23, 70445905), (115, 14089181), (131, 12368365), (655, 2473673), (821, 1973515), (3013, 537755), (4105, 394703), (15065, 107551), (17161, 94415), (18883, 85805)]