28106720

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1811}}^1$

素因数の和:1923

約数の個数: 48

約数和(自身を含む): 67123728

約数和(自身を除く): 39017008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1811, 1940, 3104, 3622, 3880, 7244, 7760, 9055, 14488, 15520, 18110, 28976, 36220, 57952, 72440, 144880, 175667, 289760, 351334, 702668, 878335, 1405336, 1756670, 2810672, 3513340, 5621344, 7026680, 14053360, 28106720]

約数ペア:

[(1, 28106720), (2, 14053360), (4, 7026680), (5, 5621344), (8, 3513340), (10, 2810672), (16, 1756670), (20, 1405336), (32, 878335), (40, 702668), (80, 351334), (97, 289760), (160, 175667), (194, 144880), (388, 72440), (485, 57952), (776, 36220), (970, 28976), (1552, 18110), (1811, 15520), (1940, 14488), (3104, 9055), (3622, 7760), (3880, 7244)]