918561980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{5981}}^1$

素因数の和:7094

約数の個数: 48

約数和(自身を含む): 2206927296

約数和(自身を除く): 1288365316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1097, 2194, 4388, 5485, 5981, 7679, 10970, 11962, 15358, 21940, 23924, 29905, 30716, 38395, 41867, 59810, 76790, 83734, 119620, 153580, 167468, 209335, 418670, 837340, 6561157, 13122314, 26244628, 32805785, 45928099, 65611570, 91856198, 131223140, 183712396, 229640495, 459280990, 918561980]

約数ペア:

[(1, 918561980), (2, 459280990), (4, 229640495), (5, 183712396), (7, 131223140), (10, 91856198), (14, 65611570), (20, 45928099), (28, 32805785), (35, 26244628), (70, 13122314), (140, 6561157), (1097, 837340), (2194, 418670), (4388, 209335), (5485, 167468), (5981, 153580), (7679, 119620), (10970, 83734), (11962, 76790), (15358, 59810), (21940, 41867), (23924, 38395), (29905, 30716)]