222271840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{28351}}^1$

素因数の和:28380

約数の個数: 72

約数和(自身を含む): 610872192

約数和(自身を除く): 388600352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 28351, 56702, 113404, 141755, 198457, 226808, 283510, 396914, 453616, 567020, 793828, 907232, 992285, 1134040, 1389199, 1587656, 1984570, 2268080, 2778398, 3175312, 3969140, 4536160, 5556796, 6350624, 6945995, 7938280, 11113592, 13891990, 15876560, 22227184, 27783980, 31753120, 44454368, 55567960, 111135920, 222271840]

約数ペア:

[(1, 222271840), (2, 111135920), (4, 55567960), (5, 44454368), (7, 31753120), (8, 27783980), (10, 22227184), (14, 15876560), (16, 13891990), (20, 11113592), (28, 7938280), (32, 6945995), (35, 6350624), (40, 5556796), (49, 4536160), (56, 3969140), (70, 3175312), (80, 2778398), (98, 2268080), (112, 1984570), (140, 1587656), (160, 1389199), (196, 1134040), (224, 992285), (245, 907232), (280, 793828), (392, 567020), (490, 453616), (560, 396914), (784, 283510), (980, 226808), (1120, 198457), (1568, 141755), (1960, 113404), (3920, 56702), (7840, 28351)]