85037720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23887}}^1$

素因数の和:23987

約数の個数: 32

約数和(自身を含む): 193492800

約数和(自身を除く): 108455080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 23887, 47774, 95548, 119435, 191096, 238870, 477740, 955480, 2125943, 4251886, 8503772, 10629715, 17007544, 21259430, 42518860, 85037720]

約数ペア:

[(1, 85037720), (2, 42518860), (4, 21259430), (5, 17007544), (8, 10629715), (10, 8503772), (20, 4251886), (40, 2125943), (89, 955480), (178, 477740), (356, 238870), (445, 191096), (712, 119435), (890, 95548), (1780, 47774), (3560, 23887)]