28235900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 80828160

約数和(自身を除く): 52592260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 25, 28, 35, 38, 44, 50, 55, 70, 76, 77, 95, 100, 110, 133, 140, 154, 175, 190, 193, 209, 220, 266, 275, 308, 350, 380, 385, 386, 418, 475, 532, 550, 665, 700, 770, 772, 836, 950, 965, 1045, 1100, 1330, 1351, 1463, 1540, 1900, 1925, 1930, 2090, 2123, 2660, 2702, 2926, 3325, 3667, 3850, 3860, 4180, 4246, 4825, 5225, 5404, 5852, 6650, 6755, 7315, 7334, 7700, 8492, 9650, 10450, 10615, 13300, 13510, 14630, 14668, 14861, 18335, 19300, 20900, 21230, 25669, 27020, 29260, 29722, 33775, 36575, 36670, 40337, 42460, 51338, 53075, 59444, 67550, 73150, 73340, 74305, 80674, 91675, 102676, 106150, 128345, 135100, 146300, 148610, 161348, 183350, 201685, 212300, 256690, 282359, 297220, 366700, 371525, 403370, 513380, 564718, 641725, 743050, 806740, 1008425, 1129436, 1283450, 1411795, 1486100, 2016850, 2566900, 2823590, 4033700, 5647180, 7058975, 14117950, 28235900]

約数ペア:

[(1, 28235900), (2, 14117950), (4, 7058975), (5, 5647180), (7, 4033700), (10, 2823590), (11, 2566900), (14, 2016850), (19, 1486100), (20, 1411795), (22, 1283450), (25, 1129436), (28, 1008425), (35, 806740), (38, 743050), (44, 641725), (50, 564718), (55, 513380), (70, 403370), (76, 371525), (77, 366700), (95, 297220), (100, 282359), (110, 256690), (133, 212300), (140, 201685), (154, 183350), (175, 161348), (190, 148610), (193, 146300), (209, 135100), (220, 128345), (266, 106150), (275, 102676), (308, 91675), (350, 80674), (380, 74305), (385, 73340), (386, 73150), (418, 67550), (475, 59444), (532, 53075), (550, 51338), (665, 42460), (700, 40337), (770, 36670), (772, 36575), (836, 33775), (950, 29722), (965, 29260), (1045, 27020), (1100, 25669), (1330, 21230), (1351, 20900), (1463, 19300), (1540, 18335), (1900, 14861), (1925, 14668), (1930, 14630), (2090, 13510), (2123, 13300), (2660, 10615), (2702, 10450), (2926, 9650), (3325, 8492), (3667, 7700), (3850, 7334), (3860, 7315), (4180, 6755), (4246, 6650), (4825, 5852), (5225, 5404)]