2987891390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{343831}}^1$

素因数の和:343928

約数の個数: 32

約数和(自身を含む): 5941416960

約数和(自身を除く): 2953525570

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 4345, 8690, 343831, 687662, 1719155, 3438310, 3782141, 7564282, 18910705, 27162649, 37821410, 54325298, 135813245, 271626490, 298789139, 597578278, 1493945695, 2987891390]

約数ペア:

[(1, 2987891390), (2, 1493945695), (5, 597578278), (10, 298789139), (11, 271626490), (22, 135813245), (55, 54325298), (79, 37821410), (110, 27162649), (158, 18910705), (395, 7564282), (790, 3782141), (869, 3438310), (1738, 1719155), (4345, 687662), (8690, 343831)]