28401156

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2621}}^1$

素因数の和:2681

約数の個数: 72

約数和(自身を含む): 83987904

約数和(自身を除く): 55586748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2621, 2709, 3612, 5242, 5418, 7863, 10484, 10836, 15726, 18347, 23589, 31452, 36694, 47178, 55041, 73388, 94356, 110082, 112703, 165123, 220164, 225406, 330246, 338109, 450812, 660492, 676218, 788921, 1014327, 1352436, 1577842, 2028654, 2366763, 3155684, 4057308, 4733526, 7100289, 9467052, 14200578, 28401156]

約数ペア:

[(1, 28401156), (2, 14200578), (3, 9467052), (4, 7100289), (6, 4733526), (7, 4057308), (9, 3155684), (12, 2366763), (14, 2028654), (18, 1577842), (21, 1352436), (28, 1014327), (36, 788921), (42, 676218), (43, 660492), (63, 450812), (84, 338109), (86, 330246), (126, 225406), (129, 220164), (172, 165123), (252, 112703), (258, 110082), (301, 94356), (387, 73388), (516, 55041), (602, 47178), (774, 36694), (903, 31452), (1204, 23589), (1548, 18347), (1806, 15726), (2621, 10836), (2709, 10484), (3612, 7863), (5242, 5418)]