17978020

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2347}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 37868544

約数和(自身を除く): 19890524

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2347, 3830, 4694, 7660, 9388, 11735, 23470, 46940, 898901, 1797802, 3595604, 4494505, 8989010, 17978020]

約数ペア:

[(1, 17978020), (2, 8989010), (4, 4494505), (5, 3595604), (10, 1797802), (20, 898901), (383, 46940), (766, 23470), (1532, 11735), (1915, 9388), (2347, 7660), (3830, 4694)]