21560523520

素因数分解:

$2^8\times 5^1\times {\mathrm{139}}^1\times {\mathrm{121181}}^1$

素因数の和:121341

約数の個数: 72

約数和(自身を含む): 52016161680

約数和(自身を除く): 30455638160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 556, 640, 695, 1112, 1280, 1390, 2224, 2780, 4448, 5560, 8896, 11120, 17792, 22240, 35584, 44480, 88960, 121181, 177920, 242362, 484724, 605905, 969448, 1211810, 1938896, 2423620, 3877792, 4847240, 7755584, 9694480, 15511168, 16844159, 19388960, 31022336, 33688318, 38777920, 67376636, 77555840, 84220795, 134753272, 155111680, 168441590, 269506544, 336883180, 539013088, 673766360, 1078026176, 1347532720, 2156052352, 2695065440, 4312104704, 5390130880, 10780261760, 21560523520]

約数ペア:

[(1, 21560523520), (2, 10780261760), (4, 5390130880), (5, 4312104704), (8, 2695065440), (10, 2156052352), (16, 1347532720), (20, 1078026176), (32, 673766360), (40, 539013088), (64, 336883180), (80, 269506544), (128, 168441590), (139, 155111680), (160, 134753272), (256, 84220795), (278, 77555840), (320, 67376636), (556, 38777920), (640, 33688318), (695, 31022336), (1112, 19388960), (1280, 16844159), (1390, 15511168), (2224, 9694480), (2780, 7755584), (4448, 4847240), (5560, 3877792), (8896, 2423620), (11120, 1938896), (17792, 1211810), (22240, 969448), (35584, 605905), (44480, 484724), (88960, 242362), (121181, 177920)]