19782340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31907}}^1$

素因数の和:31947

約数の個数: 24

約数和(自身を含む): 42884352

約数和(自身を除く): 23102012

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31907, 63814, 127628, 159535, 319070, 638140, 989117, 1978234, 3956468, 4945585, 9891170, 19782340]

約数ペア:

[(1, 19782340), (2, 9891170), (4, 4945585), (5, 3956468), (10, 1978234), (20, 989117), (31, 638140), (62, 319070), (124, 159535), (155, 127628), (310, 63814), (620, 31907)]