256314448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 558186496

約数和(自身を除く): 301872048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 127, 208, 248, 254, 313, 403, 496, 508, 626, 806, 1016, 1252, 1612, 1651, 2032, 2504, 3224, 3302, 3937, 4069, 5008, 6448, 6604, 7874, 8138, 9703, 13208, 15748, 16276, 19406, 26416, 31496, 32552, 38812, 39751, 51181, 62992, 65104, 77624, 79502, 102362, 126139, 155248, 159004, 204724, 252278, 318008, 409448, 504556, 516763, 636016, 818896, 1009112, 1033526, 1232281, 2018224, 2067052, 2464562, 4134104, 4929124, 8268208, 9858248, 16019653, 19716496, 32039306, 64078612, 128157224, 256314448]

約数ペア:

[(1, 256314448), (2, 128157224), (4, 64078612), (8, 32039306), (13, 19716496), (16, 16019653), (26, 9858248), (31, 8268208), (52, 4929124), (62, 4134104), (104, 2464562), (124, 2067052), (127, 2018224), (208, 1232281), (248, 1033526), (254, 1009112), (313, 818896), (403, 636016), (496, 516763), (508, 504556), (626, 409448), (806, 318008), (1016, 252278), (1252, 204724), (1612, 159004), (1651, 155248), (2032, 126139), (2504, 102362), (3224, 79502), (3302, 77624), (3937, 65104), (4069, 62992), (5008, 51181), (6448, 39751), (6604, 38812), (7874, 32552), (8138, 31496), (9703, 26416), (13208, 19406), (15748, 16276)]