31458245

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:139

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 19344955

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 83, 85, 91, 119, 221, 245, 343, 415, 455, 581, 595, 637, 833, 1079, 1105, 1411, 1547, 1715, 2905, 3185, 4067, 4165, 4459, 5395, 5831, 7055, 7553, 7735, 9877, 10829, 18343, 20335, 22295, 28469, 29155, 37765, 49385, 52871, 54145, 69139, 75803, 91715, 128401, 142345, 264355, 345695, 370097, 379015, 483973, 642005, 898807, 1850485, 2419865, 4494035, 6291649, 31458245]

約数ペア:

[(1, 31458245), (5, 6291649), (7, 4494035), (13, 2419865), (17, 1850485), (35, 898807), (49, 642005), (65, 483973), (83, 379015), (85, 370097), (91, 345695), (119, 264355), (221, 142345), (245, 128401), (343, 91715), (415, 75803), (455, 69139), (581, 54145), (595, 52871), (637, 49385), (833, 37765), (1079, 29155), (1105, 28469), (1411, 22295), (1547, 20335), (1715, 18343), (2905, 10829), (3185, 9877), (4067, 7735), (4165, 7553), (4459, 7055), (5395, 5831)]