19704860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20107}}^1$

素因数の和:20130

約数の個数: 36

約数和(自身を含む): 48138552

約数和(自身を除く): 28433692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20107, 40214, 80428, 100535, 140749, 201070, 281498, 402140, 562996, 703745, 985243, 1407490, 1970486, 2814980, 3940972, 4926215, 9852430, 19704860]

約数ペア:

[(1, 19704860), (2, 9852430), (4, 4926215), (5, 3940972), (7, 2814980), (10, 1970486), (14, 1407490), (20, 985243), (28, 703745), (35, 562996), (49, 402140), (70, 281498), (98, 201070), (140, 140749), (196, 100535), (245, 80428), (490, 40214), (980, 20107)]