28436268

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 77967792

約数和(自身を除く): 49531524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 137, 147, 196, 274, 294, 353, 411, 548, 588, 706, 822, 959, 1059, 1412, 1644, 1918, 2118, 2471, 2877, 3836, 4236, 4942, 5754, 6713, 7413, 9884, 11508, 13426, 14826, 17297, 20139, 26852, 29652, 34594, 40278, 48361, 51891, 69188, 80556, 96722, 103782, 145083, 193444, 207564, 290166, 338527, 580332, 677054, 1015581, 1354108, 2031162, 2369689, 4062324, 4739378, 7109067, 9478756, 14218134, 28436268]

約数ペア:

[(1, 28436268), (2, 14218134), (3, 9478756), (4, 7109067), (6, 4739378), (7, 4062324), (12, 2369689), (14, 2031162), (21, 1354108), (28, 1015581), (42, 677054), (49, 580332), (84, 338527), (98, 290166), (137, 207564), (147, 193444), (196, 145083), (274, 103782), (294, 96722), (353, 80556), (411, 69188), (548, 51891), (588, 48361), (706, 40278), (822, 34594), (959, 29652), (1059, 26852), (1412, 20139), (1644, 17297), (1918, 14826), (2118, 13426), (2471, 11508), (2877, 9884), (3836, 7413), (4236, 6713), (4942, 5754)]