21777280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4861}}^1$

素因数の和:4887

約数の個数: 64

約数和(自身を含む): 59510880

約数和(自身を除く): 37733600

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, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4861, 9722, 19444, 24305, 34027, 38888, 48610, 68054, 77776, 97220, 136108, 155552, 170135, 194440, 272216, 311104, 340270, 388880, 544432, 622208, 680540, 777760, 1088864, 1361080, 1555520, 2177728, 2722160, 3111040, 4355456, 5444320, 10888640, 21777280]

約数ペア:

[(1, 21777280), (2, 10888640), (4, 5444320), (5, 4355456), (7, 3111040), (8, 2722160), (10, 2177728), (14, 1555520), (16, 1361080), (20, 1088864), (28, 777760), (32, 680540), (35, 622208), (40, 544432), (56, 388880), (64, 340270), (70, 311104), (80, 272216), (112, 194440), (128, 170135), (140, 155552), (160, 136108), (224, 97220), (280, 77776), (320, 68054), (448, 48610), (560, 38888), (640, 34027), (896, 24305), (1120, 19444), (2240, 9722), (4480, 4861)]