317794640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 769474560

約数和(自身を除く): 451679920

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, 1009, 1016, 1240, 1270, 2018, 2032, 2480, 2540, 3937, 4036, 5045, 5080, 7874, 8072, 10090, 10160, 15748, 16144, 19685, 20180, 31279, 31496, 39370, 40360, 62558, 62992, 78740, 80720, 125116, 128143, 156395, 157480, 250232, 256286, 312790, 314960, 500464, 512572, 625580, 640715, 1025144, 1251160, 1281430, 2050288, 2502320, 2562860, 3972433, 5125720, 7944866, 10251440, 15889732, 19862165, 31779464, 39724330, 63558928, 79448660, 158897320, 317794640]

約数ペア:

[(1, 317794640), (2, 158897320), (4, 79448660), (5, 63558928), (8, 39724330), (10, 31779464), (16, 19862165), (20, 15889732), (31, 10251440), (40, 7944866), (62, 5125720), (80, 3972433), (124, 2562860), (127, 2502320), (155, 2050288), (248, 1281430), (254, 1251160), (310, 1025144), (496, 640715), (508, 625580), (620, 512572), (635, 500464), (1009, 314960), (1016, 312790), (1240, 256286), (1270, 250232), (2018, 157480), (2032, 156395), (2480, 128143), (2540, 125116), (3937, 80720), (4036, 78740), (5045, 62992), (5080, 62558), (7874, 40360), (8072, 39370), (10090, 31496), (10160, 31279), (15748, 20180), (16144, 19685)]