31480345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 44513280

約数和(自身を除く): 13032935

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 403, 527, 919, 1105, 2015, 2635, 4595, 6851, 11947, 15623, 28489, 34255, 59735, 78115, 142445, 203099, 370357, 484313, 1015495, 1851785, 2421565, 6296069, 31480345]

約数ペア:

[(1, 31480345), (5, 6296069), (13, 2421565), (17, 1851785), (31, 1015495), (65, 484313), (85, 370357), (155, 203099), (221, 142445), (403, 78115), (527, 59735), (919, 34255), (1105, 28489), (2015, 15623), (2635, 11947), (4595, 6851)]