20080910090

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{72649}}^1$

素因数の和:72998

約数の個数: 32

約数和(自身を含む): 36594676800

約数和(自身を除く): 16513766710

約数列:

[1, 2, 5, 10, 131, 211, 262, 422, 655, 1055, 1310, 2110, 27641, 55282, 72649, 138205, 145298, 276410, 363245, 726490, 9517019, 15328939, 19034038, 30657878, 47585095, 76644695, 95170190, 153289390, 2008091009, 4016182018, 10040455045, 20080910090]

約数ペア:

[(1, 20080910090), (2, 10040455045), (5, 4016182018), (10, 2008091009), (131, 153289390), (211, 95170190), (262, 76644695), (422, 47585095), (655, 30657878), (1055, 19034038), (1310, 15328939), (2110, 9517019), (27641, 726490), (55282, 363245), (72649, 276410), (138205, 145298)]