311942920

素因数分解:

$2^3\times 5^1\times {\mathrm{1097}}^1\times {\mathrm{7109}}^1$

素因数の和:8217

約数の個数: 32

約数和(自身を含む): 702610200

約数和(自身を除く): 390667280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1097, 2194, 4388, 5485, 7109, 8776, 10970, 14218, 21940, 28436, 35545, 43880, 56872, 71090, 142180, 284360, 7798573, 15597146, 31194292, 38992865, 62388584, 77985730, 155971460, 311942920]

約数ペア:

[(1, 311942920), (2, 155971460), (4, 77985730), (5, 62388584), (8, 38992865), (10, 31194292), (20, 15597146), (40, 7798573), (1097, 284360), (2194, 142180), (4388, 71090), (5485, 56872), (7109, 43880), (8776, 35545), (10970, 28436), (14218, 21940)]