639306882

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{313}}^1\times {\mathrm{2141}}^1$

素因数の和:2515

約数の個数: 48

約数和(自身を含む): 1416470328

約数和(自身を除く): 777163446

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 313, 318, 477, 626, 939, 954, 1878, 2141, 2817, 4282, 5634, 6423, 12846, 16589, 19269, 33178, 38538, 49767, 99534, 113473, 149301, 226946, 298602, 340419, 670133, 680838, 1021257, 1340266, 2010399, 2042514, 4020798, 6031197, 12062394, 35517049, 71034098, 106551147, 213102294, 319653441, 639306882]

約数ペア:

[(1, 639306882), (2, 319653441), (3, 213102294), (6, 106551147), (9, 71034098), (18, 35517049), (53, 12062394), (106, 6031197), (159, 4020798), (313, 2042514), (318, 2010399), (477, 1340266), (626, 1021257), (939, 680838), (954, 670133), (1878, 340419), (2141, 298602), (2817, 226946), (4282, 149301), (5634, 113473), (6423, 99534), (12846, 49767), (16589, 38538), (19269, 33178)]