319211960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2027}}^1$

素因数の和:2196

約数の個数: 64

約数和(自身を含む): 747601920

約数和(自身を除く): 428389960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 2027, 2540, 3937, 4054, 5080, 7874, 8108, 10135, 15748, 16216, 19685, 20270, 31496, 39370, 40540, 62837, 78740, 81080, 125674, 157480, 251348, 257429, 314185, 502696, 514858, 628370, 1029716, 1256740, 1287145, 2059432, 2513480, 2574290, 5148580, 7980299, 10297160, 15960598, 31921196, 39901495, 63842392, 79802990, 159605980, 319211960]

約数ペア:

[(1, 319211960), (2, 159605980), (4, 79802990), (5, 63842392), (8, 39901495), (10, 31921196), (20, 15960598), (31, 10297160), (40, 7980299), (62, 5148580), (124, 2574290), (127, 2513480), (155, 2059432), (248, 1287145), (254, 1256740), (310, 1029716), (508, 628370), (620, 514858), (635, 502696), (1016, 314185), (1240, 257429), (1270, 251348), (2027, 157480), (2540, 125674), (3937, 81080), (4054, 78740), (5080, 62837), (7874, 40540), (8108, 39370), (10135, 31496), (15748, 20270), (16216, 19685)]