21968000

素因数分解:

$2^7\times 5^3\times {\mathrm{1373}}^1$

素因数の和:1402

約数の個数: 64

約数和(自身を含む): 54657720

約数和(自身を除く): 32689720

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, 1373, 1600, 2000, 2746, 3200, 4000, 5492, 6865, 8000, 10984, 13730, 16000, 21968, 27460, 34325, 43936, 54920, 68650, 87872, 109840, 137300, 171625, 175744, 219680, 274600, 343250, 439360, 549200, 686500, 878720, 1098400, 1373000, 2196800, 2746000, 4393600, 5492000, 10984000, 21968000]

約数ペア:

[(1, 21968000), (2, 10984000), (4, 5492000), (5, 4393600), (8, 2746000), (10, 2196800), (16, 1373000), (20, 1098400), (25, 878720), (32, 686500), (40, 549200), (50, 439360), (64, 343250), (80, 274600), (100, 219680), (125, 175744), (128, 171625), (160, 137300), (200, 109840), (250, 87872), (320, 68650), (400, 54920), (500, 43936), (640, 34325), (800, 27460), (1000, 21968), (1373, 16000), (1600, 13730), (2000, 10984), (2746, 8000), (3200, 6865), (4000, 5492)]