40121543

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 36

約数和(自身を含む): 52581816

約数和(自身を除く): 12460273

約数列:

[1, 7, 11, 49, 67, 77, 101, 121, 469, 539, 707, 737, 847, 1111, 3283, 4949, 5159, 5929, 6767, 7777, 8107, 12221, 36113, 47369, 54439, 56749, 74437, 85547, 331583, 397243, 521059, 598829, 818807, 3647413, 5731649, 40121543]

約数ペア:

[(1, 40121543), (7, 5731649), (11, 3647413), (49, 818807), (67, 598829), (77, 521059), (101, 397243), (121, 331583), (469, 85547), (539, 74437), (707, 56749), (737, 54439), (847, 47369), (1111, 36113), (3283, 12221), (4949, 8107), (5159, 7777), (5929, 6767)]