251611870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1\times {\mathrm{1613}}^1$

素因数の和:2460

約数の個数: 32

約数和(自身を含む): 477614880

約数和(自身を除く): 226003010

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 821, 1613, 1642, 3226, 4105, 8065, 8210, 15599, 16130, 30647, 31198, 61294, 77995, 153235, 155990, 306470, 1324273, 2648546, 6621365, 13242730, 25161187, 50322374, 125805935, 251611870]

約数ペア:

[(1, 251611870), (2, 125805935), (5, 50322374), (10, 25161187), (19, 13242730), (38, 6621365), (95, 2648546), (190, 1324273), (821, 306470), (1613, 155990), (1642, 153235), (3226, 77995), (4105, 61294), (8065, 31198), (8210, 30647), (15599, 16130)]