20493079040

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1143587}}^1$

素因数の和:1143617

約数の個数: 80

約数和(自身を含む): 56154745152

約数和(自身を除く): 35661666112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1120, 1280, 1792, 2240, 2560, 3584, 4480, 8960, 17920, 1143587, 2287174, 4574348, 5717935, 8005109, 9148696, 11435870, 16010218, 18297392, 22871740, 32020436, 36594784, 40025545, 45743480, 64040872, 73189568, 80051090, 91486960, 128081744, 146379136, 160102180, 182973920, 256163488, 292758272, 320204360, 365947840, 512326976, 585516544, 640408720, 731895680, 1024653952, 1280817440, 1463791360, 2049307904, 2561634880, 2927582720, 4098615808, 5123269760, 10246539520, 20493079040]

約数ペア:

[(1, 20493079040), (2, 10246539520), (4, 5123269760), (5, 4098615808), (7, 2927582720), (8, 2561634880), (10, 2049307904), (14, 1463791360), (16, 1280817440), (20, 1024653952), (28, 731895680), (32, 640408720), (35, 585516544), (40, 512326976), (56, 365947840), (64, 320204360), (70, 292758272), (80, 256163488), (112, 182973920), (128, 160102180), (140, 146379136), (160, 128081744), (224, 91486960), (256, 80051090), (280, 73189568), (320, 64040872), (448, 45743480), (512, 40025545), (560, 36594784), (640, 32020436), (896, 22871740), (1120, 18297392), (1280, 16010218), (1792, 11435870), (2240, 9148696), (2560, 8005109), (3584, 5717935), (4480, 4574348), (8960, 2287174), (17920, 1143587)]