19194140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1931}}^1$

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 46738944

約数和(自身を除く): 27544804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1931, 1988, 2485, 3862, 4970, 7724, 9655, 9940, 13517, 19310, 27034, 38620, 54068, 67585, 135170, 137101, 270340, 274202, 548404, 685505, 959707, 1371010, 1919414, 2742020, 3838828, 4798535, 9597070, 19194140]

約数ペア:

[(1, 19194140), (2, 9597070), (4, 4798535), (5, 3838828), (7, 2742020), (10, 1919414), (14, 1371010), (20, 959707), (28, 685505), (35, 548404), (70, 274202), (71, 270340), (140, 137101), (142, 135170), (284, 67585), (355, 54068), (497, 38620), (710, 27034), (994, 19310), (1420, 13517), (1931, 9940), (1988, 9655), (2485, 7724), (3862, 4970)]