80980480

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{4519}}^1$

素因数の和:4549

約数の個数: 80

約数和(自身を含む): 221950080

約数和(自身を除く): 140969600

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, 4519, 8960, 9038, 17920, 18076, 22595, 31633, 36152, 45190, 63266, 72304, 90380, 126532, 144608, 158165, 180760, 253064, 289216, 316330, 361520, 506128, 578432, 632660, 723040, 1012256, 1156864, 1265320, 1446080, 2024512, 2313728, 2530640, 2892160, 4049024, 5061280, 5784320, 8098048, 10122560, 11568640, 16196096, 20245120, 40490240, 80980480]

約数ペア:

[(1, 80980480), (2, 40490240), (4, 20245120), (5, 16196096), (7, 11568640), (8, 10122560), (10, 8098048), (14, 5784320), (16, 5061280), (20, 4049024), (28, 2892160), (32, 2530640), (35, 2313728), (40, 2024512), (56, 1446080), (64, 1265320), (70, 1156864), (80, 1012256), (112, 723040), (128, 632660), (140, 578432), (160, 506128), (224, 361520), (256, 316330), (280, 289216), (320, 253064), (448, 180760), (512, 158165), (560, 144608), (640, 126532), (896, 90380), (1120, 72304), (1280, 63266), (1792, 45190), (2240, 36152), (2560, 31633), (3584, 22595), (4480, 18076), (4519, 17920), (8960, 9038)]