21137237200

素因数分解:

$2^4\times 5^2\times {\mathrm{991}}^1\times {\mathrm{53323}}^1$

素因数の和:54332

約数の個数: 60

約数和(自身を含む): 50834409088

約数和(自身を除く): 29697171888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 991, 1982, 3964, 4955, 7928, 9910, 15856, 19820, 24775, 39640, 49550, 53323, 79280, 99100, 106646, 198200, 213292, 266615, 396400, 426584, 533230, 853168, 1066460, 1333075, 2132920, 2666150, 4265840, 5332300, 10664600, 21329200, 52843093, 105686186, 211372372, 264215465, 422744744, 528430930, 845489488, 1056861860, 1321077325, 2113723720, 2642154650, 4227447440, 5284309300, 10568618600, 21137237200]

約数ペア:

[(1, 21137237200), (2, 10568618600), (4, 5284309300), (5, 4227447440), (8, 2642154650), (10, 2113723720), (16, 1321077325), (20, 1056861860), (25, 845489488), (40, 528430930), (50, 422744744), (80, 264215465), (100, 211372372), (200, 105686186), (400, 52843093), (991, 21329200), (1982, 10664600), (3964, 5332300), (4955, 4265840), (7928, 2666150), (9910, 2132920), (15856, 1333075), (19820, 1066460), (24775, 853168), (39640, 533230), (49550, 426584), (53323, 396400), (79280, 266615), (99100, 213292), (106646, 198200)]