980720060

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{1847}}^1$

素因数の和:2186

約数の個数: 48

約数和(自身を含む): 2086318080

約数和(自身を除く): 1105598020

約数列:

[1, 2, 4, 5, 10, 20, 139, 191, 278, 382, 556, 695, 764, 955, 1390, 1847, 1910, 2780, 3694, 3820, 7388, 9235, 18470, 26549, 36940, 53098, 106196, 132745, 256733, 265490, 352777, 513466, 530980, 705554, 1026932, 1283665, 1411108, 1763885, 2567330, 3527770, 5134660, 7055540, 49036003, 98072006, 196144012, 245180015, 490360030, 980720060]

約数ペア:

[(1, 980720060), (2, 490360030), (4, 245180015), (5, 196144012), (10, 98072006), (20, 49036003), (139, 7055540), (191, 5134660), (278, 3527770), (382, 2567330), (556, 1763885), (695, 1411108), (764, 1283665), (955, 1026932), (1390, 705554), (1847, 530980), (1910, 513466), (2780, 352777), (3694, 265490), (3820, 256733), (7388, 132745), (9235, 106196), (18470, 53098), (26549, 36940)]