665275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 24

約数和(自身を含む): 937440

約数和(自身を除く): 272165

約数列:

[1, 5, 13, 23, 25, 65, 89, 115, 299, 325, 445, 575, 1157, 1495, 2047, 2225, 5785, 7475, 10235, 26611, 28925, 51175, 133055, 665275]

約数ペア:

[(1, 665275), (5, 133055), (13, 51175), (23, 28925), (25, 26611), (65, 10235), (89, 7475), (115, 5785), (299, 2225), (325, 2047), (445, 1495), (575, 1157)]