890257840

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{108041}}^1$

素因数の和:108157

約数の個数: 40

約数和(自身を含む): 2089964448

約数和(自身を除く): 1199706608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 108041, 216082, 432164, 540205, 864328, 1080410, 1728656, 2160820, 4321640, 8643280, 11128223, 22256446, 44512892, 55641115, 89025784, 111282230, 178051568, 222564460, 445128920, 890257840]

約数ペア:

[(1, 890257840), (2, 445128920), (4, 222564460), (5, 178051568), (8, 111282230), (10, 89025784), (16, 55641115), (20, 44512892), (40, 22256446), (80, 11128223), (103, 8643280), (206, 4321640), (412, 2160820), (515, 1728656), (824, 1080410), (1030, 864328), (1648, 540205), (2060, 432164), (4120, 216082), (8240, 108041)]