20984320

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{1171}}^1$

素因数の和:1201

約数の個数: 80

約数和(自身を含む): 57549888

約数和(自身を除く): 36565568

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, 1171, 1280, 1792, 2240, 2342, 2560, 3584, 4480, 4684, 5855, 8197, 8960, 9368, 11710, 16394, 17920, 18736, 23420, 32788, 37472, 40985, 46840, 65576, 74944, 81970, 93680, 131152, 149888, 163940, 187360, 262304, 299776, 327880, 374720, 524608, 599552, 655760, 749440, 1049216, 1311520, 1498880, 2098432, 2623040, 2997760, 4196864, 5246080, 10492160, 20984320]

約数ペア:

[(1, 20984320), (2, 10492160), (4, 5246080), (5, 4196864), (7, 2997760), (8, 2623040), (10, 2098432), (14, 1498880), (16, 1311520), (20, 1049216), (28, 749440), (32, 655760), (35, 599552), (40, 524608), (56, 374720), (64, 327880), (70, 299776), (80, 262304), (112, 187360), (128, 163940), (140, 149888), (160, 131152), (224, 93680), (256, 81970), (280, 74944), (320, 65576), (448, 46840), (512, 40985), (560, 37472), (640, 32788), (896, 23420), (1120, 18736), (1171, 17920), (1280, 16394), (1792, 11710), (2240, 9368), (2342, 8960), (2560, 8197), (3584, 5855), (4480, 4684)]