28778610

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3247

約数の個数: 64

約数和(自身を含む): 80796672

約数和(自身を除く): 52018062

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 3010, 3187, 4515, 6374, 9030, 9561, 15935, 19122, 22309, 31870, 44618, 47805, 66927, 95610, 111545, 133854, 137041, 223090, 274082, 334635, 411123, 669270, 685205, 822246, 959287, 1370410, 1918574, 2055615, 2877861, 4111230, 4796435, 5755722, 9592870, 14389305, 28778610]

約数ペア:

[(1, 28778610), (2, 14389305), (3, 9592870), (5, 5755722), (6, 4796435), (7, 4111230), (10, 2877861), (14, 2055615), (15, 1918574), (21, 1370410), (30, 959287), (35, 822246), (42, 685205), (43, 669270), (70, 411123), (86, 334635), (105, 274082), (129, 223090), (210, 137041), (215, 133854), (258, 111545), (301, 95610), (430, 66927), (602, 47805), (645, 44618), (903, 31870), (1290, 22309), (1505, 19122), (1806, 15935), (3010, 9561), (3187, 9030), (4515, 6374)]