1721256400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1093}}^1$

素因数の和:1269

約数の個数: 120

約数和(自身を含む): 4306264064

約数和(自身を除く): 2585007664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 127, 155, 200, 248, 254, 310, 400, 496, 508, 620, 635, 775, 1016, 1093, 1240, 1270, 1550, 2032, 2186, 2480, 2540, 3100, 3175, 3937, 4372, 5080, 5465, 6200, 6350, 7874, 8744, 10160, 10930, 12400, 12700, 15748, 17488, 19685, 21860, 25400, 27325, 31496, 33883, 39370, 43720, 50800, 54650, 62992, 67766, 78740, 87440, 98425, 109300, 135532, 138811, 157480, 169415, 196850, 218600, 271064, 277622, 314960, 338830, 393700, 437200, 542128, 555244, 677660, 694055, 787400, 847075, 1110488, 1355320, 1388110, 1574800, 1694150, 2220976, 2710640, 2776220, 3388300, 3470275, 4303141, 5552440, 6776600, 6940550, 8606282, 11104880, 13553200, 13881100, 17212564, 21515705, 27762200, 34425128, 43031410, 55524400, 68850256, 86062820, 107578525, 172125640, 215157050, 344251280, 430314100, 860628200, 1721256400]

約数ペア:

[(1, 1721256400), (2, 860628200), (4, 430314100), (5, 344251280), (8, 215157050), (10, 172125640), (16, 107578525), (20, 86062820), (25, 68850256), (31, 55524400), (40, 43031410), (50, 34425128), (62, 27762200), (80, 21515705), (100, 17212564), (124, 13881100), (127, 13553200), (155, 11104880), (200, 8606282), (248, 6940550), (254, 6776600), (310, 5552440), (400, 4303141), (496, 3470275), (508, 3388300), (620, 2776220), (635, 2710640), (775, 2220976), (1016, 1694150), (1093, 1574800), (1240, 1388110), (1270, 1355320), (1550, 1110488), (2032, 847075), (2186, 787400), (2480, 694055), (2540, 677660), (3100, 555244), (3175, 542128), (3937, 437200), (4372, 393700), (5080, 338830), (5465, 314960), (6200, 277622), (6350, 271064), (7874, 218600), (8744, 196850), (10160, 169415), (10930, 157480), (12400, 138811), (12700, 135532), (15748, 109300), (17488, 98425), (19685, 87440), (21860, 78740), (25400, 67766), (27325, 62992), (31496, 54650), (33883, 50800), (39370, 43720)]