281563126

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{139}}^1\times {\mathrm{461}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 461815200

約数和(自身を除く): 180252074

約数列:

[1, 2, 13, 26, 139, 169, 278, 338, 461, 922, 1807, 2197, 3614, 4394, 5993, 11986, 23491, 46982, 64079, 77909, 128158, 155818, 305383, 610766, 833027, 1012817, 1666054, 2025634, 10829351, 21658702, 140781563, 281563126]

約数ペア:

[(1, 281563126), (2, 140781563), (13, 21658702), (26, 10829351), (139, 2025634), (169, 1666054), (278, 1012817), (338, 833027), (461, 610766), (922, 305383), (1807, 155818), (2197, 128158), (3614, 77909), (4394, 64079), (5993, 46982), (11986, 23491)]