51371240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29867}}^1$

素因数の和:29921

約数の個数: 32

約数和(自身を含む): 118277280

約数和(自身を除く): 66906040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 29867, 59734, 119468, 149335, 238936, 298670, 597340, 1194680, 1284281, 2568562, 5137124, 6421405, 10274248, 12842810, 25685620, 51371240]

約数ペア:

[(1, 51371240), (2, 25685620), (4, 12842810), (5, 10274248), (8, 6421405), (10, 5137124), (20, 2568562), (40, 1284281), (43, 1194680), (86, 597340), (172, 298670), (215, 238936), (344, 149335), (430, 119468), (860, 59734), (1720, 29867)]