131968240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{419}}^1$

素因数の和:590

約数の個数: 80

約数和(自身を含む): 319979520

約数和(自身を除く): 188011280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 310, 419, 496, 508, 620, 635, 838, 1016, 1240, 1270, 1676, 2032, 2095, 2480, 2540, 3352, 3937, 4190, 5080, 6704, 7874, 8380, 10160, 12989, 15748, 16760, 19685, 25978, 31496, 33520, 39370, 51956, 53213, 62992, 64945, 78740, 103912, 106426, 129890, 157480, 207824, 212852, 259780, 266065, 314960, 425704, 519560, 532130, 851408, 1039120, 1064260, 1649603, 2128520, 3299206, 4257040, 6598412, 8248015, 13196824, 16496030, 26393648, 32992060, 65984120, 131968240]

約数ペア:

[(1, 131968240), (2, 65984120), (4, 32992060), (5, 26393648), (8, 16496030), (10, 13196824), (16, 8248015), (20, 6598412), (31, 4257040), (40, 3299206), (62, 2128520), (80, 1649603), (124, 1064260), (127, 1039120), (155, 851408), (248, 532130), (254, 519560), (310, 425704), (419, 314960), (496, 266065), (508, 259780), (620, 212852), (635, 207824), (838, 157480), (1016, 129890), (1240, 106426), (1270, 103912), (1676, 78740), (2032, 64945), (2095, 62992), (2480, 53213), (2540, 51956), (3352, 39370), (3937, 33520), (4190, 31496), (5080, 25978), (6704, 19685), (7874, 16760), (8380, 15748), (10160, 12989)]