18892390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 20298650

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 59, 71, 82, 110, 118, 142, 205, 295, 355, 410, 451, 590, 649, 710, 781, 902, 1298, 1562, 2255, 2419, 2911, 3245, 3905, 4189, 4510, 4838, 5822, 6490, 7810, 8378, 12095, 14555, 20945, 24190, 26609, 29110, 32021, 41890, 46079, 53218, 64042, 92158, 133045, 160105, 171749, 230395, 266090, 320210, 343498, 460790, 858745, 1717490, 1889239, 3778478, 9446195, 18892390]

約数ペア:

[(1, 18892390), (2, 9446195), (5, 3778478), (10, 1889239), (11, 1717490), (22, 858745), (41, 460790), (55, 343498), (59, 320210), (71, 266090), (82, 230395), (110, 171749), (118, 160105), (142, 133045), (205, 92158), (295, 64042), (355, 53218), (410, 46079), (451, 41890), (590, 32021), (649, 29110), (710, 26609), (781, 24190), (902, 20945), (1298, 14555), (1562, 12095), (2255, 8378), (2419, 7810), (2911, 6490), (3245, 5822), (3905, 4838), (4189, 4510)]