28291564

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 59609088

約数和(自身を除く): 31317524

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 197, 223, 322, 394, 446, 644, 788, 892, 1379, 1561, 2758, 3122, 4531, 5129, 5516, 6244, 9062, 10258, 18124, 20516, 31717, 35903, 43931, 63434, 71806, 87862, 126868, 143612, 175724, 307517, 615034, 1010413, 1230068, 2020826, 4041652, 7072891, 14145782, 28291564]

約数ペア:

[(1, 28291564), (2, 14145782), (4, 7072891), (7, 4041652), (14, 2020826), (23, 1230068), (28, 1010413), (46, 615034), (92, 307517), (161, 175724), (197, 143612), (223, 126868), (322, 87862), (394, 71806), (446, 63434), (644, 43931), (788, 35903), (892, 31717), (1379, 20516), (1561, 18124), (2758, 10258), (3122, 9062), (4531, 6244), (5129, 5516)]