1301968000

素因数分解:

$2^7\times 5^3\times {\mathrm{81373}}^1$

素因数の和:81402

約数の個数: 64

約数和(自身を含む): 3237057720

約数和(自身を除く): 1935089720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1600, 2000, 3200, 4000, 8000, 16000, 81373, 162746, 325492, 406865, 650984, 813730, 1301968, 1627460, 2034325, 2603936, 3254920, 4068650, 5207872, 6509840, 8137300, 10171625, 10415744, 13019680, 16274600, 20343250, 26039360, 32549200, 40686500, 52078720, 65098400, 81373000, 130196800, 162746000, 260393600, 325492000, 650984000, 1301968000]

約数ペア:

[(1, 1301968000), (2, 650984000), (4, 325492000), (5, 260393600), (8, 162746000), (10, 130196800), (16, 81373000), (20, 65098400), (25, 52078720), (32, 40686500), (40, 32549200), (50, 26039360), (64, 20343250), (80, 16274600), (100, 13019680), (125, 10415744), (128, 10171625), (160, 8137300), (200, 6509840), (250, 5207872), (320, 4068650), (400, 3254920), (500, 2603936), (640, 2034325), (800, 1627460), (1000, 1301968), (1600, 813730), (2000, 650984), (3200, 406865), (4000, 325492), (8000, 162746), (16000, 81373)]