28064620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 62868960

約数和(自身を除く): 34804340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 419, 788, 838, 985, 1676, 1970, 2095, 3349, 3940, 4190, 6698, 7123, 8380, 13396, 14246, 16745, 28492, 33490, 35615, 66980, 71230, 82543, 142460, 165086, 330172, 412715, 825430, 1403231, 1650860, 2806462, 5612924, 7016155, 14032310, 28064620]

約数ペア:

[(1, 28064620), (2, 14032310), (4, 7016155), (5, 5612924), (10, 2806462), (17, 1650860), (20, 1403231), (34, 825430), (68, 412715), (85, 330172), (170, 165086), (197, 142460), (340, 82543), (394, 71230), (419, 66980), (788, 35615), (838, 33490), (985, 28492), (1676, 16745), (1970, 14246), (2095, 13396), (3349, 8380), (3940, 7123), (4190, 6698)]