28757196

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1495

約数の個数: 72

約数和(自身を含む): 80160080

約数和(自身を除く): 51402884

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1429, 1548, 1677, 2236, 2858, 3354, 4287, 5031, 5716, 6708, 8574, 10062, 12861, 17148, 18577, 20124, 25722, 37154, 51444, 55731, 61447, 74308, 111462, 122894, 167193, 184341, 222924, 245788, 334386, 368682, 553023, 668772, 737364, 798811, 1106046, 1597622, 2212092, 2396433, 3195244, 4792866, 7189299, 9585732, 14378598, 28757196]

約数ペア:

[(1, 28757196), (2, 14378598), (3, 9585732), (4, 7189299), (6, 4792866), (9, 3195244), (12, 2396433), (13, 2212092), (18, 1597622), (26, 1106046), (36, 798811), (39, 737364), (43, 668772), (52, 553023), (78, 368682), (86, 334386), (117, 245788), (129, 222924), (156, 184341), (172, 167193), (234, 122894), (258, 111462), (387, 74308), (468, 61447), (516, 55731), (559, 51444), (774, 37154), (1118, 25722), (1429, 20124), (1548, 18577), (1677, 17148), (2236, 12861), (2858, 10062), (3354, 8574), (4287, 6708), (5031, 5716)]