19885400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5233}}^1$

素因数の和:5268

約数の個数: 48

約数和(自身を含む): 48676200

約数和(自身を除く): 28790800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5233, 10466, 20932, 26165, 41864, 52330, 99427, 104660, 130825, 198854, 209320, 261650, 397708, 497135, 523300, 795416, 994270, 1046600, 1988540, 2485675, 3977080, 4971350, 9942700, 19885400]

約数ペア:

[(1, 19885400), (2, 9942700), (4, 4971350), (5, 3977080), (8, 2485675), (10, 1988540), (19, 1046600), (20, 994270), (25, 795416), (38, 523300), (40, 497135), (50, 397708), (76, 261650), (95, 209320), (100, 198854), (152, 130825), (190, 104660), (200, 99427), (380, 52330), (475, 41864), (760, 26165), (950, 20932), (1900, 10466), (3800, 5233)]