28665440

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1847}}^1$

素因数の和:1959

約数の個数: 48

約数和(自身を含む): 68457312

約数和(自身を除く): 39791872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1847, 1940, 3104, 3694, 3880, 7388, 7760, 9235, 14776, 15520, 18470, 29552, 36940, 59104, 73880, 147760, 179159, 295520, 358318, 716636, 895795, 1433272, 1791590, 2866544, 3583180, 5733088, 7166360, 14332720, 28665440]

約数ペア:

[(1, 28665440), (2, 14332720), (4, 7166360), (5, 5733088), (8, 3583180), (10, 2866544), (16, 1791590), (20, 1433272), (32, 895795), (40, 716636), (80, 358318), (97, 295520), (160, 179159), (194, 147760), (388, 73880), (485, 59104), (776, 36940), (970, 29552), (1552, 18470), (1847, 15520), (1940, 14776), (3104, 9235), (3694, 7760), (3880, 7388)]