128779040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{613}}^1$

素因数の和:742

約数の個数: 96

約数和(自身を含む): 331427376

約数和(自身を除く): 202648336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 101, 104, 130, 160, 202, 208, 260, 404, 416, 505, 520, 613, 808, 1010, 1040, 1226, 1313, 1616, 2020, 2080, 2452, 2626, 3065, 3232, 4040, 4904, 5252, 6130, 6565, 7969, 8080, 9808, 10504, 12260, 13130, 15938, 16160, 19616, 21008, 24520, 26260, 31876, 39845, 42016, 49040, 52520, 61913, 63752, 79690, 98080, 105040, 123826, 127504, 159380, 210080, 247652, 255008, 309565, 318760, 495304, 619130, 637520, 804869, 990608, 1238260, 1275040, 1609738, 1981216, 2476520, 3219476, 4024345, 4953040, 6438952, 8048690, 9906080, 12877904, 16097380, 25755808, 32194760, 64389520, 128779040]

約数ペア:

[(1, 128779040), (2, 64389520), (4, 32194760), (5, 25755808), (8, 16097380), (10, 12877904), (13, 9906080), (16, 8048690), (20, 6438952), (26, 4953040), (32, 4024345), (40, 3219476), (52, 2476520), (65, 1981216), (80, 1609738), (101, 1275040), (104, 1238260), (130, 990608), (160, 804869), (202, 637520), (208, 619130), (260, 495304), (404, 318760), (416, 309565), (505, 255008), (520, 247652), (613, 210080), (808, 159380), (1010, 127504), (1040, 123826), (1226, 105040), (1313, 98080), (1616, 79690), (2020, 63752), (2080, 61913), (2452, 52520), (2626, 49040), (3065, 42016), (3232, 39845), (4040, 31876), (4904, 26260), (5252, 24520), (6130, 21008), (6565, 19616), (7969, 16160), (8080, 15938), (9808, 13130), (10504, 12260)]