89407580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 195804000

約数和(自身を除く): 106396420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 556, 580, 695, 1109, 1390, 2218, 2780, 4031, 4436, 5545, 8062, 11090, 16124, 20155, 22180, 32161, 40310, 64322, 80620, 128644, 154151, 160805, 308302, 321610, 616604, 643220, 770755, 1541510, 3083020, 4470379, 8940758, 17881516, 22351895, 44703790, 89407580]

約数ペア:

[(1, 89407580), (2, 44703790), (4, 22351895), (5, 17881516), (10, 8940758), (20, 4470379), (29, 3083020), (58, 1541510), (116, 770755), (139, 643220), (145, 616604), (278, 321610), (290, 308302), (556, 160805), (580, 154151), (695, 128644), (1109, 80620), (1390, 64322), (2218, 40310), (2780, 32161), (4031, 22180), (4436, 20155), (5545, 16124), (8062, 11090)]