38388280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1931}}^1$

素因数の和:2020

約数の個数: 64

約数和(自身を含む): 100154880

約数和(自身を除く): 61766600

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, 994, 1420, 1931, 1988, 2485, 2840, 3862, 3976, 4970, 7724, 9655, 9940, 13517, 15448, 19310, 19880, 27034, 38620, 54068, 67585, 77240, 108136, 135170, 137101, 270340, 274202, 540680, 548404, 685505, 959707, 1096808, 1371010, 1919414, 2742020, 3838828, 4798535, 5484040, 7677656, 9597070, 19194140, 38388280]

約数ペア:

[(1, 38388280), (2, 19194140), (4, 9597070), (5, 7677656), (7, 5484040), (8, 4798535), (10, 3838828), (14, 2742020), (20, 1919414), (28, 1371010), (35, 1096808), (40, 959707), (56, 685505), (70, 548404), (71, 540680), (140, 274202), (142, 270340), (280, 137101), (284, 135170), (355, 108136), (497, 77240), (568, 67585), (710, 54068), (994, 38620), (1420, 27034), (1931, 19880), (1988, 19310), (2485, 15448), (2840, 13517), (3862, 9940), (3976, 9655), (4970, 7724)]