1900490425

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 2480466240

約数和(自身を除く): 579975815

約数列:

[1, 5, 25, 41, 83, 89, 205, 251, 415, 445, 1025, 1255, 2075, 2225, 3403, 3649, 6275, 7387, 10291, 17015, 18245, 20833, 22339, 36935, 51455, 85075, 91225, 104165, 111695, 184675, 257275, 302867, 520825, 558475, 854153, 915899, 1514335, 1854137, 4270765, 4579495, 7571675, 9270685, 21353825, 22897475, 46353425, 76019617, 380098085, 1900490425]

約数ペア:

[(1, 1900490425), (5, 380098085), (25, 76019617), (41, 46353425), (83, 22897475), (89, 21353825), (205, 9270685), (251, 7571675), (415, 4579495), (445, 4270765), (1025, 1854137), (1255, 1514335), (2075, 915899), (2225, 854153), (3403, 558475), (3649, 520825), (6275, 302867), (7387, 257275), (10291, 184675), (17015, 111695), (18245, 104165), (20833, 91225), (22339, 85075), (36935, 51455)]