20718020

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6203}}^1$

素因数の和:6379

約数の個数: 24

約数和(自身を含む): 43775424

約数和(自身を除く): 23057404

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 6203, 12406, 24812, 31015, 62030, 124060, 1035901, 2071802, 4143604, 5179505, 10359010, 20718020]

約数ペア:

[(1, 20718020), (2, 10359010), (4, 5179505), (5, 4143604), (10, 2071802), (20, 1035901), (167, 124060), (334, 62030), (668, 31015), (835, 24812), (1670, 12406), (3340, 6203)]