13720275

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 54

約数和(自身を含む): 26228852

約数和(自身を除く): 12508577

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 211, 225, 255, 289, 425, 633, 765, 867, 1055, 1275, 1445, 1899, 2601, 3165, 3587, 3825, 4335, 5275, 7225, 9495, 10761, 13005, 15825, 17935, 21675, 32283, 47475, 53805, 60979, 65025, 89675, 161415, 182937, 269025, 304895, 548811, 807075, 914685, 1524475, 2744055, 4573425, 13720275]

約数ペア:

[(1, 13720275), (3, 4573425), (5, 2744055), (9, 1524475), (15, 914685), (17, 807075), (25, 548811), (45, 304895), (51, 269025), (75, 182937), (85, 161415), (153, 89675), (211, 65025), (225, 60979), (255, 53805), (289, 47475), (425, 32283), (633, 21675), (765, 17935), (867, 15825), (1055, 13005), (1275, 10761), (1445, 9495), (1899, 7225), (2601, 5275), (3165, 4335), (3587, 3825)]