71803120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20873}}^1$

素因数の和:20929

約数の個数: 40

約数和(自身を含む): 170832816

約数和(自身を除く): 99029696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 20873, 41746, 83492, 104365, 166984, 208730, 333968, 417460, 834920, 897539, 1669840, 1795078, 3590156, 4487695, 7180312, 8975390, 14360624, 17950780, 35901560, 71803120]

約数ペア:

[(1, 71803120), (2, 35901560), (4, 17950780), (5, 14360624), (8, 8975390), (10, 7180312), (16, 4487695), (20, 3590156), (40, 1795078), (43, 1669840), (80, 897539), (86, 834920), (172, 417460), (215, 333968), (344, 208730), (430, 166984), (688, 104365), (860, 83492), (1720, 41746), (3440, 20873)]