19785130

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63823}}^1$

素因数の和:63861

約数の個数: 16

約数和(自身を含む): 36762624

約数和(自身を除く): 16977494

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 63823, 127646, 319115, 638230, 1978513, 3957026, 9892565, 19785130]

約数ペア:

[(1, 19785130), (2, 9892565), (5, 3957026), (10, 1978513), (31, 638230), (62, 319115), (155, 127646), (310, 63823)]