408503120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1297}}^1$

素因数の和:1468

約数の個数: 80

約数和(自身を含む): 988889088

約数和(自身を除く): 580385968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 310, 496, 508, 620, 635, 1016, 1240, 1270, 1297, 2032, 2480, 2540, 2594, 3937, 5080, 5188, 6485, 7874, 10160, 10376, 12970, 15748, 19685, 20752, 25940, 31496, 39370, 40207, 51880, 62992, 78740, 80414, 103760, 157480, 160828, 164719, 201035, 314960, 321656, 329438, 402070, 643312, 658876, 804140, 823595, 1317752, 1608280, 1647190, 2635504, 3216560, 3294380, 5106289, 6588760, 10212578, 13177520, 20425156, 25531445, 40850312, 51062890, 81700624, 102125780, 204251560, 408503120]

約数ペア:

[(1, 408503120), (2, 204251560), (4, 102125780), (5, 81700624), (8, 51062890), (10, 40850312), (16, 25531445), (20, 20425156), (31, 13177520), (40, 10212578), (62, 6588760), (80, 5106289), (124, 3294380), (127, 3216560), (155, 2635504), (248, 1647190), (254, 1608280), (310, 1317752), (496, 823595), (508, 804140), (620, 658876), (635, 643312), (1016, 402070), (1240, 329438), (1270, 321656), (1297, 314960), (2032, 201035), (2480, 164719), (2540, 160828), (2594, 157480), (3937, 103760), (5080, 80414), (5188, 78740), (6485, 62992), (7874, 51880), (10160, 40207), (10376, 39370), (12970, 31496), (15748, 25940), (19685, 20752)]