28208290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2539}}^1$

素因数の和:2658

約数の個数: 32

約数和(自身を含む): 55961280

約数和(自身を除く): 27752990

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 2539, 5078, 5555, 11110, 12695, 25390, 27929, 55858, 139645, 256439, 279290, 512878, 1282195, 2564390, 2820829, 5641658, 14104145, 28208290]

約数ペア:

[(1, 28208290), (2, 14104145), (5, 5641658), (10, 2820829), (11, 2564390), (22, 1282195), (55, 512878), (101, 279290), (110, 256439), (202, 139645), (505, 55858), (1010, 27929), (1111, 25390), (2222, 12695), (2539, 11110), (5078, 5555)]