20119270

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{659}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 17516570

約数列:

[1, 2, 5, 10, 43, 71, 86, 142, 215, 355, 430, 659, 710, 1318, 3053, 3295, 6106, 6590, 15265, 28337, 30530, 46789, 56674, 93578, 141685, 233945, 283370, 467890, 2011927, 4023854, 10059635, 20119270]

約数ペア:

[(1, 20119270), (2, 10059635), (5, 4023854), (10, 2011927), (43, 467890), (71, 283370), (86, 233945), (142, 141685), (215, 93578), (355, 56674), (430, 46789), (659, 30530), (710, 28337), (1318, 15265), (3053, 6590), (3295, 6106)]