16191225

素因数分解:

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

素因数の和:136

約数の個数: 72

約数和(自身を含む): 31977120

約数和(自身を除く): 15785895

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 83, 85, 135, 153, 225, 249, 255, 289, 415, 425, 459, 675, 747, 765, 867, 1245, 1275, 1411, 1445, 2075, 2241, 2295, 2601, 3735, 3825, 4233, 4335, 6225, 7055, 7225, 7803, 11205, 11475, 12699, 13005, 18675, 21165, 21675, 23987, 35275, 38097, 39015, 56025, 63495, 65025, 71961, 105825, 119935, 190485, 195075, 215883, 317475, 359805, 599675, 647649, 952425, 1079415, 1799025, 3238245, 5397075, 16191225]

約数ペア:

[(1, 16191225), (3, 5397075), (5, 3238245), (9, 1799025), (15, 1079415), (17, 952425), (25, 647649), (27, 599675), (45, 359805), (51, 317475), (75, 215883), (83, 195075), (85, 190485), (135, 119935), (153, 105825), (225, 71961), (249, 65025), (255, 63495), (289, 56025), (415, 39015), (425, 38097), (459, 35275), (675, 23987), (747, 21675), (765, 21165), (867, 18675), (1245, 13005), (1275, 12699), (1411, 11475), (1445, 11205), (2075, 7803), (2241, 7225), (2295, 7055), (2601, 6225), (3735, 4335), (3825, 4233)]