12728475

素因数分解:

$3^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 23733600

約数和(自身を除く): 11005125

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 109, 135, 173, 225, 327, 519, 545, 675, 865, 981, 1557, 1635, 2595, 2725, 2943, 4325, 4671, 4905, 7785, 8175, 12975, 14715, 18857, 23355, 24525, 38925, 56571, 73575, 94285, 116775, 169713, 282855, 471425, 509139, 848565, 1414275, 2545695, 4242825, 12728475]

約数ペア:

[(1, 12728475), (3, 4242825), (5, 2545695), (9, 1414275), (15, 848565), (25, 509139), (27, 471425), (45, 282855), (75, 169713), (109, 116775), (135, 94285), (173, 73575), (225, 56571), (327, 38925), (519, 24525), (545, 23355), (675, 18857), (865, 14715), (981, 12975), (1557, 8175), (1635, 7785), (2595, 4905), (2725, 4671), (2943, 4325)]