620187610

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{20749}}^1$

素因数の和:20831

約数の個数: 48

約数和(自身を含む): 1319949000

約数和(自身を除く): 699761390

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 61, 70, 98, 122, 245, 305, 427, 490, 610, 854, 2135, 2989, 4270, 5978, 14945, 20749, 29890, 41498, 103745, 145243, 207490, 290486, 726215, 1016701, 1265689, 1452430, 2033402, 2531378, 5083505, 6328445, 8859823, 10167010, 12656890, 17719646, 44299115, 62018761, 88598230, 124037522, 310093805, 620187610]

約数ペア:

[(1, 620187610), (2, 310093805), (5, 124037522), (7, 88598230), (10, 62018761), (14, 44299115), (35, 17719646), (49, 12656890), (61, 10167010), (70, 8859823), (98, 6328445), (122, 5083505), (245, 2531378), (305, 2033402), (427, 1452430), (490, 1265689), (610, 1016701), (854, 726215), (2135, 290486), (2989, 207490), (4270, 145243), (5978, 103745), (14945, 41498), (20749, 29890)]