640964388

素因数分解:

$2^2\times 3^1\times {\mathrm{3137}}^1\times {\mathrm{17027}}^1$

素因数の和:20171

約数の個数: 24

約数和(自身を含む): 1496148192

約数和(自身を除く): 855183804

約数列:

[1, 2, 3, 4, 6, 12, 3137, 6274, 9411, 12548, 17027, 18822, 34054, 37644, 51081, 68108, 102162, 204324, 53413699, 106827398, 160241097, 213654796, 320482194, 640964388]

約数ペア:

[(1, 640964388), (2, 320482194), (3, 213654796), (4, 160241097), (6, 106827398), (12, 53413699), (3137, 204324), (6274, 102162), (9411, 68108), (12548, 51081), (17027, 37644), (18822, 34054)]