20124160

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1123}}^1$

素因数の和:1153

約数の個数: 80

約数和(自身を含む): 55192896

約数和(自身を除く): 35068736

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, 1123, 1280, 1792, 2240, 2246, 2560, 3584, 4480, 4492, 5615, 7861, 8960, 8984, 11230, 15722, 17920, 17968, 22460, 31444, 35936, 39305, 44920, 62888, 71872, 78610, 89840, 125776, 143744, 157220, 179680, 251552, 287488, 314440, 359360, 503104, 574976, 628880, 718720, 1006208, 1257760, 1437440, 2012416, 2515520, 2874880, 4024832, 5031040, 10062080, 20124160]

約数ペア:

[(1, 20124160), (2, 10062080), (4, 5031040), (5, 4024832), (7, 2874880), (8, 2515520), (10, 2012416), (14, 1437440), (16, 1257760), (20, 1006208), (28, 718720), (32, 628880), (35, 574976), (40, 503104), (56, 359360), (64, 314440), (70, 287488), (80, 251552), (112, 179680), (128, 157220), (140, 143744), (160, 125776), (224, 89840), (256, 78610), (280, 71872), (320, 62888), (448, 44920), (512, 39305), (560, 35936), (640, 31444), (896, 22460), (1120, 17968), (1123, 17920), (1280, 15722), (1792, 11230), (2240, 8984), (2246, 8960), (2560, 7861), (3584, 5615), (4480, 4492)]