6720015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 12179808

約数和(自身を除く): 5459793

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 73, 85, 95, 219, 255, 285, 323, 361, 365, 969, 1083, 1095, 1241, 1387, 1615, 1805, 3723, 4161, 4845, 5415, 6137, 6205, 6935, 18411, 18615, 20805, 23579, 26353, 30685, 70737, 79059, 92055, 117895, 131765, 353685, 395295, 448001, 1344003, 2240005, 6720015]

約数ペア:

[(1, 6720015), (3, 2240005), (5, 1344003), (15, 448001), (17, 395295), (19, 353685), (51, 131765), (57, 117895), (73, 92055), (85, 79059), (95, 70737), (219, 30685), (255, 26353), (285, 23579), (323, 20805), (361, 18615), (365, 18411), (969, 6935), (1083, 6205), (1095, 6137), (1241, 5415), (1387, 4845), (1615, 4161), (1805, 3723)]