209968640

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{11717}}^1$

素因数の和:11747

約数の個数: 80

約数和(自身を含む): 575400672

約数和(自身を除く): 365432032

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, 8960, 11717, 17920, 23434, 46868, 58585, 82019, 93736, 117170, 164038, 187472, 234340, 328076, 374944, 410095, 468680, 656152, 749888, 820190, 937360, 1312304, 1499776, 1640380, 1874720, 2624608, 2999552, 3280760, 3749440, 5249216, 5999104, 6561520, 7498880, 10498432, 13123040, 14997760, 20996864, 26246080, 29995520, 41993728, 52492160, 104984320, 209968640]

約数ペア:

[(1, 209968640), (2, 104984320), (4, 52492160), (5, 41993728), (7, 29995520), (8, 26246080), (10, 20996864), (14, 14997760), (16, 13123040), (20, 10498432), (28, 7498880), (32, 6561520), (35, 5999104), (40, 5249216), (56, 3749440), (64, 3280760), (70, 2999552), (80, 2624608), (112, 1874720), (128, 1640380), (140, 1499776), (160, 1312304), (224, 937360), (256, 820190), (280, 749888), (320, 656152), (448, 468680), (512, 410095), (560, 374944), (640, 328076), (896, 234340), (1120, 187472), (1280, 164038), (1792, 117170), (2240, 93736), (2560, 82019), (3584, 58585), (4480, 46868), (8960, 23434), (11717, 17920)]