51748425

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:279

約数の個数: 72

約数和(自身を含む): 99931104

約数和(自身を除く): 48182679

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 83, 85, 153, 163, 225, 249, 255, 415, 425, 489, 747, 765, 815, 1245, 1275, 1411, 1467, 2075, 2445, 2771, 3735, 3825, 4075, 4233, 6225, 7055, 7335, 8313, 12225, 12699, 13529, 13855, 18675, 21165, 24939, 35275, 36675, 40587, 41565, 63495, 67645, 69275, 105825, 121761, 124695, 202935, 207825, 229993, 317475, 338225, 608805, 623475, 689979, 1014675, 1149965, 2069937, 3044025, 3449895, 5749825, 10349685, 17249475, 51748425]

約数ペア:

[(1, 51748425), (3, 17249475), (5, 10349685), (9, 5749825), (15, 3449895), (17, 3044025), (25, 2069937), (45, 1149965), (51, 1014675), (75, 689979), (83, 623475), (85, 608805), (153, 338225), (163, 317475), (225, 229993), (249, 207825), (255, 202935), (415, 124695), (425, 121761), (489, 105825), (747, 69275), (765, 67645), (815, 63495), (1245, 41565), (1275, 40587), (1411, 36675), (1467, 35275), (2075, 24939), (2445, 21165), (2771, 18675), (3735, 13855), (3825, 13529), (4075, 12699), (4233, 12225), (6225, 8313), (7055, 7335)]