139961560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81373}}^1$

素因数の和:81427

約数の個数: 32

約数和(自身を含む): 322241040

約数和(自身を除く): 182279480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 81373, 162746, 325492, 406865, 650984, 813730, 1627460, 3254920, 3499039, 6998078, 13996156, 17495195, 27992312, 34990390, 69980780, 139961560]

約数ペア:

[(1, 139961560), (2, 69980780), (4, 34990390), (5, 27992312), (8, 17495195), (10, 13996156), (20, 6998078), (40, 3499039), (43, 3254920), (86, 1627460), (172, 813730), (215, 650984), (344, 406865), (430, 325492), (860, 162746), (1720, 81373)]