28447265

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2057

約数の個数: 32

約数和(自身を含む): 43732224

約数和(自身を除く): 15284959

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1997, 2035, 2849, 9985, 13979, 14245, 21967, 69895, 73889, 109835, 153769, 369445, 517223, 768845, 812779, 2586115, 4063895, 5689453, 28447265]

約数ペア:

[(1, 28447265), (5, 5689453), (7, 4063895), (11, 2586115), (35, 812779), (37, 768845), (55, 517223), (77, 369445), (185, 153769), (259, 109835), (385, 73889), (407, 69895), (1295, 21967), (1997, 14245), (2035, 13979), (2849, 9985)]