21843080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 34766200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 431, 724, 862, 905, 1267, 1448, 1724, 1810, 2155, 2534, 3017, 3448, 3620, 4310, 5068, 6034, 6335, 7240, 8620, 10136, 12068, 12670, 15085, 17240, 24136, 25340, 30170, 50680, 60340, 78011, 120680, 156022, 312044, 390055, 546077, 624088, 780110, 1092154, 1560220, 2184308, 2730385, 3120440, 4368616, 5460770, 10921540, 21843080]

約数ペア:

[(1, 21843080), (2, 10921540), (4, 5460770), (5, 4368616), (7, 3120440), (8, 2730385), (10, 2184308), (14, 1560220), (20, 1092154), (28, 780110), (35, 624088), (40, 546077), (56, 390055), (70, 312044), (140, 156022), (181, 120680), (280, 78011), (362, 60340), (431, 50680), (724, 30170), (862, 25340), (905, 24136), (1267, 17240), (1448, 15085), (1724, 12670), (1810, 12068), (2155, 10136), (2534, 8620), (3017, 7240), (3448, 6335), (3620, 6034), (4310, 5068)]