19805650

素因数分解:

$2^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{3119}}^1$

素因数の和:3258

約数の個数: 24

約数和(自身を含む): 37140480

約数和(自身を除く): 17334830

約数列:

[1, 2, 5, 10, 25, 50, 127, 254, 635, 1270, 3119, 3175, 6238, 6350, 15595, 31190, 77975, 155950, 396113, 792226, 1980565, 3961130, 9902825, 19805650]

約数ペア:

[(1, 19805650), (2, 9902825), (5, 3961130), (10, 1980565), (25, 792226), (50, 396113), (127, 155950), (254, 77975), (635, 31190), (1270, 15595), (3119, 6350), (3175, 6238)]