320629280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:682

約数の個数: 96

約数和(自身を含む): 789626880

約数和(自身を除く): 468997600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 127, 155, 160, 248, 254, 310, 496, 508, 509, 620, 635, 992, 1016, 1018, 1240, 1270, 2032, 2036, 2480, 2540, 2545, 3937, 4064, 4072, 4960, 5080, 5090, 7874, 8144, 10160, 10180, 15748, 15779, 16288, 19685, 20320, 20360, 31496, 31558, 39370, 40720, 62992, 63116, 64643, 78740, 78895, 81440, 125984, 126232, 129286, 157480, 157790, 252464, 258572, 314960, 315580, 323215, 504928, 517144, 629920, 631160, 646430, 1034288, 1262320, 1292860, 2003933, 2068576, 2524640, 2585720, 4007866, 5171440, 8015732, 10019665, 10342880, 16031464, 20039330, 32062928, 40078660, 64125856, 80157320, 160314640, 320629280]

約数ペア:

[(1, 320629280), (2, 160314640), (4, 80157320), (5, 64125856), (8, 40078660), (10, 32062928), (16, 20039330), (20, 16031464), (31, 10342880), (32, 10019665), (40, 8015732), (62, 5171440), (80, 4007866), (124, 2585720), (127, 2524640), (155, 2068576), (160, 2003933), (248, 1292860), (254, 1262320), (310, 1034288), (496, 646430), (508, 631160), (509, 629920), (620, 517144), (635, 504928), (992, 323215), (1016, 315580), (1018, 314960), (1240, 258572), (1270, 252464), (2032, 157790), (2036, 157480), (2480, 129286), (2540, 126232), (2545, 125984), (3937, 81440), (4064, 78895), (4072, 78740), (4960, 64643), (5080, 63116), (5090, 62992), (7874, 40720), (8144, 39370), (10160, 31558), (10180, 31496), (15748, 20360), (15779, 20320), (16288, 19685)]