40172990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2161}}^1$

素因数の和:2205

約数の個数: 48

約数和(自身を含む): 85459536

約数和(自身を除く): 45286546

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1430, 1690, 1859, 2161, 3718, 4322, 9295, 10805, 18590, 21610, 23771, 28093, 47542, 56186, 118855, 140465, 237710, 280930, 309023, 365209, 618046, 730418, 1545115, 1826045, 3090230, 3652090, 4017299, 8034598, 20086495, 40172990]

約数ペア:

[(1, 40172990), (2, 20086495), (5, 8034598), (10, 4017299), (11, 3652090), (13, 3090230), (22, 1826045), (26, 1545115), (55, 730418), (65, 618046), (110, 365209), (130, 309023), (143, 280930), (169, 237710), (286, 140465), (338, 118855), (715, 56186), (845, 47542), (1430, 28093), (1690, 23771), (1859, 21610), (2161, 18590), (3718, 10805), (4322, 9295)]