19886210

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{449}}^1$

素因数の和:602

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 17179390

約数列:

[1, 2, 5, 10, 43, 86, 103, 206, 215, 430, 449, 515, 898, 1030, 2245, 4429, 4490, 8858, 19307, 22145, 38614, 44290, 46247, 92494, 96535, 193070, 231235, 462470, 1988621, 3977242, 9943105, 19886210]

約数ペア:

[(1, 19886210), (2, 9943105), (5, 3977242), (10, 1988621), (43, 462470), (86, 231235), (103, 193070), (206, 96535), (215, 92494), (430, 46247), (449, 44290), (515, 38614), (898, 22145), (1030, 19307), (2245, 8858), (4429, 4490)]