80856860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82507}}^1$

素因数の和:82530

約数の個数: 36

約数和(自身を含む): 197524152

約数和(自身を除く): 116667292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82507, 165014, 330028, 412535, 577549, 825070, 1155098, 1650140, 2310196, 2887745, 4042843, 5775490, 8085686, 11550980, 16171372, 20214215, 40428430, 80856860]

約数ペア:

[(1, 80856860), (2, 40428430), (4, 20214215), (5, 16171372), (7, 11550980), (10, 8085686), (14, 5775490), (20, 4042843), (28, 2887745), (35, 2310196), (49, 1650140), (70, 1155098), (98, 825070), (140, 577549), (196, 412535), (245, 330028), (490, 165014), (980, 82507)]