18766720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 52876800

約数和(自身を除く): 34110080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 71, 80, 112, 118, 128, 140, 142, 160, 224, 236, 280, 284, 295, 320, 355, 413, 448, 472, 497, 560, 568, 590, 640, 710, 826, 896, 944, 994, 1120, 1136, 1180, 1420, 1652, 1888, 1988, 2065, 2240, 2272, 2360, 2485, 2840, 3304, 3776, 3976, 4130, 4189, 4480, 4544, 4720, 4970, 5680, 6608, 7552, 7952, 8260, 8378, 9088, 9440, 9940, 11360, 13216, 15904, 16520, 16756, 18880, 19880, 20945, 22720, 26432, 29323, 31808, 33040, 33512, 37760, 39760, 41890, 45440, 52864, 58646, 63616, 66080, 67024, 79520, 83780, 117292, 132160, 134048, 146615, 159040, 167560, 234584, 264320, 268096, 293230, 318080, 335120, 469168, 536192, 586460, 670240, 938336, 1172920, 1340480, 1876672, 2345840, 2680960, 3753344, 4691680, 9383360, 18766720]

約数ペア:

[(1, 18766720), (2, 9383360), (4, 4691680), (5, 3753344), (7, 2680960), (8, 2345840), (10, 1876672), (14, 1340480), (16, 1172920), (20, 938336), (28, 670240), (32, 586460), (35, 536192), (40, 469168), (56, 335120), (59, 318080), (64, 293230), (70, 268096), (71, 264320), (80, 234584), (112, 167560), (118, 159040), (128, 146615), (140, 134048), (142, 132160), (160, 117292), (224, 83780), (236, 79520), (280, 67024), (284, 66080), (295, 63616), (320, 58646), (355, 52864), (413, 45440), (448, 41890), (472, 39760), (497, 37760), (560, 33512), (568, 33040), (590, 31808), (640, 29323), (710, 26432), (826, 22720), (896, 20945), (944, 19880), (994, 18880), (1120, 16756), (1136, 16520), (1180, 15904), (1420, 13216), (1652, 11360), (1888, 9940), (1988, 9440), (2065, 9088), (2240, 8378), (2272, 8260), (2360, 7952), (2485, 7552), (2840, 6608), (3304, 5680), (3776, 4970), (3976, 4720), (4130, 4544), (4189, 4480)]