28096720

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2237}}^1$

素因数の和:2407

約数の個数: 40

約数和(自身を含む): 65770344

約数和(自身を除く): 37673624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2237, 2512, 3140, 4474, 6280, 8948, 11185, 12560, 17896, 22370, 35792, 44740, 89480, 178960, 351209, 702418, 1404836, 1756045, 2809672, 3512090, 5619344, 7024180, 14048360, 28096720]

約数ペア:

[(1, 28096720), (2, 14048360), (4, 7024180), (5, 5619344), (8, 3512090), (10, 2809672), (16, 1756045), (20, 1404836), (40, 702418), (80, 351209), (157, 178960), (314, 89480), (628, 44740), (785, 35792), (1256, 22370), (1570, 17896), (2237, 12560), (2512, 11185), (3140, 8948), (4474, 6280)]