138738425

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 204272640

約数和(自身を除く): 65534215

約数列:

[1, 5, 7, 25, 35, 43, 103, 175, 179, 215, 301, 515, 721, 895, 1075, 1253, 1505, 2575, 3605, 4429, 4475, 6265, 7525, 7697, 18025, 18437, 22145, 31003, 31325, 38485, 53879, 92185, 110725, 129059, 155015, 192425, 269395, 460925, 645295, 775075, 792791, 1346975, 3226475, 3963955, 5549537, 19819775, 27747685, 138738425]

約数ペア:

[(1, 138738425), (5, 27747685), (7, 19819775), (25, 5549537), (35, 3963955), (43, 3226475), (103, 1346975), (175, 792791), (179, 775075), (215, 645295), (301, 460925), (515, 269395), (721, 192425), (895, 155015), (1075, 129059), (1253, 110725), (1505, 92185), (2575, 53879), (3605, 38485), (4429, 31325), (4475, 31003), (6265, 22145), (7525, 18437), (7697, 18025)]