645860988

素因数分解:

$2^2\times 3^2\times {\mathrm{107}}^2\times {\mathrm{1567}}^1$

素因数の和:1791

約数の個数: 54

約数和(自身を含む): 1649045216

約数和(自身を除く): 1003184228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 107, 214, 321, 428, 642, 963, 1284, 1567, 1926, 3134, 3852, 4701, 6268, 9402, 11449, 14103, 18804, 22898, 28206, 34347, 45796, 56412, 68694, 103041, 137388, 167669, 206082, 335338, 412164, 503007, 670676, 1006014, 1509021, 2012028, 3018042, 6036084, 17940583, 35881166, 53821749, 71762332, 107643498, 161465247, 215286996, 322930494, 645860988]

約数ペア:

[(1, 645860988), (2, 322930494), (3, 215286996), (4, 161465247), (6, 107643498), (9, 71762332), (12, 53821749), (18, 35881166), (36, 17940583), (107, 6036084), (214, 3018042), (321, 2012028), (428, 1509021), (642, 1006014), (963, 670676), (1284, 503007), (1567, 412164), (1926, 335338), (3134, 206082), (3852, 167669), (4701, 137388), (6268, 103041), (9402, 68694), (11449, 56412), (14103, 45796), (18804, 34347), (22898, 28206)]