19528760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15749}}^1$

素因数の和:15791

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 25831240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 15749, 31498, 62996, 78745, 125992, 157490, 314980, 488219, 629960, 976438, 1952876, 2441095, 3905752, 4882190, 9764380, 19528760]

約数ペア:

[(1, 19528760), (2, 9764380), (4, 4882190), (5, 3905752), (8, 2441095), (10, 1952876), (20, 976438), (31, 629960), (40, 488219), (62, 314980), (124, 157490), (155, 125992), (248, 78745), (310, 62996), (620, 31498), (1240, 15749)]