163945240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{95317}}^1$

素因数の和:95371

約数の個数: 32

約数和(自身を含む): 377459280

約数和(自身を除く): 213514040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 95317, 190634, 381268, 476585, 762536, 953170, 1906340, 3812680, 4098631, 8197262, 16394524, 20493155, 32789048, 40986310, 81972620, 163945240]

約数ペア:

[(1, 163945240), (2, 81972620), (4, 40986310), (5, 32789048), (8, 20493155), (10, 16394524), (20, 8197262), (40, 4098631), (43, 3812680), (86, 1906340), (172, 953170), (215, 762536), (344, 476585), (430, 381268), (860, 190634), (1720, 95317)]