556640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 72

約数和(自身を含む): 1551312

約数和(自身を除く): 994672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 160, 196, 224, 245, 280, 284, 355, 392, 490, 497, 560, 568, 710, 784, 980, 994, 1120, 1136, 1420, 1568, 1960, 1988, 2272, 2485, 2840, 3479, 3920, 3976, 4970, 5680, 6958, 7840, 7952, 9940, 11360, 13916, 15904, 17395, 19880, 27832, 34790, 39760, 55664, 69580, 79520, 111328, 139160, 278320, 556640]

約数ペア:

[(1, 556640), (2, 278320), (4, 139160), (5, 111328), (7, 79520), (8, 69580), (10, 55664), (14, 39760), (16, 34790), (20, 27832), (28, 19880), (32, 17395), (35, 15904), (40, 13916), (49, 11360), (56, 9940), (70, 7952), (71, 7840), (80, 6958), (98, 5680), (112, 4970), (140, 3976), (142, 3920), (160, 3479), (196, 2840), (224, 2485), (245, 2272), (280, 1988), (284, 1960), (355, 1568), (392, 1420), (490, 1136), (497, 1120), (560, 994), (568, 980), (710, 784)]