19814260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 23295884

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 107, 188, 197, 214, 235, 394, 428, 470, 535, 788, 940, 985, 1070, 1970, 2140, 3940, 5029, 9259, 10058, 18518, 20116, 21079, 25145, 37036, 42158, 46295, 50290, 84316, 92590, 100580, 105395, 185180, 210790, 421580, 990713, 1981426, 3962852, 4953565, 9907130, 19814260]

約数ペア:

[(1, 19814260), (2, 9907130), (4, 4953565), (5, 3962852), (10, 1981426), (20, 990713), (47, 421580), (94, 210790), (107, 185180), (188, 105395), (197, 100580), (214, 92590), (235, 84316), (394, 50290), (428, 46295), (470, 42158), (535, 37036), (788, 25145), (940, 21079), (985, 20116), (1070, 18518), (1970, 10058), (2140, 9259), (3940, 5029)]