209898340

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{75503}}^1$

素因数の和:75651

約数の個数: 24

約数和(自身を含む): 443963520

約数和(自身を除く): 234065180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 75503, 151006, 302012, 377515, 755030, 1510060, 10494917, 20989834, 41979668, 52474585, 104949170, 209898340]

約数ペア:

[(1, 209898340), (2, 104949170), (4, 52474585), (5, 41979668), (10, 20989834), (20, 10494917), (139, 1510060), (278, 755030), (556, 377515), (695, 302012), (1390, 151006), (2780, 75503)]