20216306896

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{716687}}^1$

素因数の和:716779

約数の個数: 40

約数和(自身を含む): 41057622144

約数和(自身を除く): 20841315248

約数列:

[1, 2, 4, 8, 16, 41, 43, 82, 86, 164, 172, 328, 344, 656, 688, 1763, 3526, 7052, 14104, 28208, 716687, 1433374, 2866748, 5733496, 11466992, 29384167, 30817541, 58768334, 61635082, 117536668, 123270164, 235073336, 246540328, 470146672, 493080656, 1263519181, 2527038362, 5054076724, 10108153448, 20216306896]

約数ペア:

[(1, 20216306896), (2, 10108153448), (4, 5054076724), (8, 2527038362), (16, 1263519181), (41, 493080656), (43, 470146672), (82, 246540328), (86, 235073336), (164, 123270164), (172, 117536668), (328, 61635082), (344, 58768334), (656, 30817541), (688, 29384167), (1763, 11466992), (3526, 5733496), (7052, 2866748), (14104, 1433374), (28208, 716687)]