8045502680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1281131}}^1$

素因数の和:1281299

約数の個数: 32

約数和(自身を含む): 18217697040

約数和(自身を除く): 10172194360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 1281131, 2562262, 5124524, 6405655, 10249048, 12811310, 25622620, 51245240, 201137567, 402275134, 804550268, 1005687835, 1609100536, 2011375670, 4022751340, 8045502680]

約数ペア:

[(1, 8045502680), (2, 4022751340), (4, 2011375670), (5, 1609100536), (8, 1005687835), (10, 804550268), (20, 402275134), (40, 201137567), (157, 51245240), (314, 25622620), (628, 12811310), (785, 10249048), (1256, 6405655), (1570, 5124524), (3140, 2562262), (6280, 1281131)]