6456680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 15482880

約数和(自身を除く): 9026200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 127, 155, 164, 205, 248, 254, 310, 328, 410, 508, 620, 635, 820, 1016, 1240, 1270, 1271, 1640, 2540, 2542, 3937, 5080, 5084, 5207, 6355, 7874, 10168, 10414, 12710, 15748, 19685, 20828, 25420, 26035, 31496, 39370, 41656, 50840, 52070, 78740, 104140, 157480, 161417, 208280, 322834, 645668, 807085, 1291336, 1614170, 3228340, 6456680]

約数ペア:

[(1, 6456680), (2, 3228340), (4, 1614170), (5, 1291336), (8, 807085), (10, 645668), (20, 322834), (31, 208280), (40, 161417), (41, 157480), (62, 104140), (82, 78740), (124, 52070), (127, 50840), (155, 41656), (164, 39370), (205, 31496), (248, 26035), (254, 25420), (310, 20828), (328, 19685), (410, 15748), (508, 12710), (620, 10414), (635, 10168), (820, 7874), (1016, 6355), (1240, 5207), (1270, 5084), (1271, 5080), (1640, 3937), (2540, 2542)]