312455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:71

約数の個数: 32

約数和(自身を含む): 483840

約数和(自身を除く): 171385

約数列:

[1, 5, 11, 13, 19, 23, 55, 65, 95, 115, 143, 209, 247, 253, 299, 437, 715, 1045, 1235, 1265, 1495, 2185, 2717, 3289, 4807, 5681, 13585, 16445, 24035, 28405, 62491, 312455]

約数ペア:

[(1, 312455), (5, 62491), (11, 28405), (13, 24035), (19, 16445), (23, 13585), (55, 5681), (65, 4807), (95, 3289), (115, 2717), (143, 2185), (209, 1495), (247, 1265), (253, 1235), (299, 1045), (437, 715)]