25404995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 16619965

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 77, 95, 115, 133, 151, 161, 209, 253, 385, 437, 665, 755, 805, 1045, 1057, 1265, 1463, 1661, 1771, 2185, 2869, 3059, 3473, 4807, 5285, 7315, 8305, 8855, 11627, 14345, 15295, 17365, 20083, 24035, 24311, 31559, 33649, 38203, 58135, 65987, 100415, 121555, 157795, 168245, 191015, 220913, 267421, 329935, 461909, 725857, 1104565, 1337105, 2309545, 3629285, 5080999, 25404995]

約数ペア:

[(1, 25404995), (5, 5080999), (7, 3629285), (11, 2309545), (19, 1337105), (23, 1104565), (35, 725857), (55, 461909), (77, 329935), (95, 267421), (115, 220913), (133, 191015), (151, 168245), (161, 157795), (209, 121555), (253, 100415), (385, 65987), (437, 58135), (665, 38203), (755, 33649), (805, 31559), (1045, 24311), (1057, 24035), (1265, 20083), (1463, 17365), (1661, 15295), (1771, 14345), (2185, 11627), (2869, 8855), (3059, 8305), (3473, 7315), (4807, 5285)]