18826360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1036

約数の個数: 64

約数和(自身を含む): 49144320

約数和(自身を除く): 30317960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 947, 994, 1420, 1894, 1988, 2485, 2840, 3788, 3976, 4735, 4970, 6629, 7576, 9470, 9940, 13258, 18940, 19880, 26516, 33145, 37880, 53032, 66290, 67237, 132580, 134474, 265160, 268948, 336185, 470659, 537896, 672370, 941318, 1344740, 1882636, 2353295, 2689480, 3765272, 4706590, 9413180, 18826360]

約数ペア:

[(1, 18826360), (2, 9413180), (4, 4706590), (5, 3765272), (7, 2689480), (8, 2353295), (10, 1882636), (14, 1344740), (20, 941318), (28, 672370), (35, 537896), (40, 470659), (56, 336185), (70, 268948), (71, 265160), (140, 134474), (142, 132580), (280, 67237), (284, 66290), (355, 53032), (497, 37880), (568, 33145), (710, 26516), (947, 19880), (994, 18940), (1420, 13258), (1894, 9940), (1988, 9470), (2485, 7576), (2840, 6629), (3788, 4970), (3976, 4735)]