18630320

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1301}}^1$

素因数の和:1493

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 24960640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1301, 1432, 1790, 2602, 2864, 3580, 5204, 6505, 7160, 10408, 13010, 14320, 20816, 26020, 52040, 104080, 232879, 465758, 931516, 1164395, 1863032, 2328790, 3726064, 4657580, 9315160, 18630320]

約数ペア:

[(1, 18630320), (2, 9315160), (4, 4657580), (5, 3726064), (8, 2328790), (10, 1863032), (16, 1164395), (20, 931516), (40, 465758), (80, 232879), (179, 104080), (358, 52040), (716, 26020), (895, 20816), (1301, 14320), (1432, 13010), (1790, 10408), (2602, 7160), (2864, 6505), (3580, 5204)]