81306400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{14519}}^1$

素因数の和:14546

約数の個数: 72

約数和(自身を含む): 226860480

約数和(自身を除く): 145554080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 350, 400, 560, 700, 800, 1120, 1400, 2800, 5600, 14519, 29038, 58076, 72595, 101633, 116152, 145190, 203266, 232304, 290380, 362975, 406532, 464608, 508165, 580760, 725950, 813064, 1016330, 1161520, 1451900, 1626128, 2032660, 2323040, 2540825, 2903800, 3252256, 4065320, 5081650, 5807600, 8130640, 10163300, 11615200, 16261280, 20326600, 40653200, 81306400]

約数ペア:

[(1, 81306400), (2, 40653200), (4, 20326600), (5, 16261280), (7, 11615200), (8, 10163300), (10, 8130640), (14, 5807600), (16, 5081650), (20, 4065320), (25, 3252256), (28, 2903800), (32, 2540825), (35, 2323040), (40, 2032660), (50, 1626128), (56, 1451900), (70, 1161520), (80, 1016330), (100, 813064), (112, 725950), (140, 580760), (160, 508165), (175, 464608), (200, 406532), (224, 362975), (280, 290380), (350, 232304), (400, 203266), (560, 145190), (700, 116152), (800, 101633), (1120, 72595), (1400, 58076), (2800, 29038), (5600, 14519)]