40871285

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 61797120

約数和(自身を除く): 20925835

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1505, 2089, 2795, 3913, 10445, 14623, 19565, 27157, 73115, 89827, 135785, 190099, 449135, 628789, 950495, 1167751, 3143945, 5838755, 8174257, 40871285]

約数ペア:

[(1, 40871285), (5, 8174257), (7, 5838755), (13, 3143945), (35, 1167751), (43, 950495), (65, 628789), (91, 449135), (215, 190099), (301, 135785), (455, 89827), (559, 73115), (1505, 27157), (2089, 19565), (2795, 14623), (3913, 10445)]