311955980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{2999}}^1$

素因数の和:3758

約数の個数: 48

約数和(自身を含む): 749952000

約数和(自身を除く): 437996020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 743, 1486, 2972, 2999, 3715, 5201, 5998, 7430, 10402, 11996, 14860, 14995, 20804, 20993, 26005, 29990, 41986, 52010, 59980, 83972, 104020, 104965, 209930, 419860, 2228257, 4456514, 8913028, 11141285, 15597799, 22282570, 31195598, 44565140, 62391196, 77988995, 155977990, 311955980]

約数ペア:

[(1, 311955980), (2, 155977990), (4, 77988995), (5, 62391196), (7, 44565140), (10, 31195598), (14, 22282570), (20, 15597799), (28, 11141285), (35, 8913028), (70, 4456514), (140, 2228257), (743, 419860), (1486, 209930), (2972, 104965), (2999, 104020), (3715, 83972), (5201, 59980), (5998, 52010), (7430, 41986), (10402, 29990), (11996, 26005), (14860, 20993), (14995, 20804)]