65905240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{38317}}^1$

素因数の和:38371

約数の個数: 32

約数和(自身を含む): 151739280

約数和(自身を除く): 85834040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 38317, 76634, 153268, 191585, 306536, 383170, 766340, 1532680, 1647631, 3295262, 6590524, 8238155, 13181048, 16476310, 32952620, 65905240]

約数ペア:

[(1, 65905240), (2, 32952620), (4, 16476310), (5, 13181048), (8, 8238155), (10, 6590524), (20, 3295262), (40, 1647631), (43, 1532680), (86, 766340), (172, 383170), (215, 306536), (344, 191585), (430, 153268), (860, 76634), (1720, 38317)]