18008705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 25764480

約数和(自身を除く): 7755775

約数列:

[1, 5, 11, 13, 55, 65, 89, 143, 283, 445, 715, 979, 1157, 1415, 3113, 3679, 4895, 5785, 12727, 15565, 18395, 25187, 40469, 63635, 125935, 202345, 277057, 327431, 1385285, 1637155, 3601741, 18008705]

約数ペア:

[(1, 18008705), (5, 3601741), (11, 1637155), (13, 1385285), (55, 327431), (65, 277057), (89, 202345), (143, 125935), (283, 63635), (445, 40469), (715, 25187), (979, 18395), (1157, 15565), (1415, 12727), (3113, 5785), (3679, 4895)]