78840385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 105380352

約数和(自身を除く): 26539967

約数列:

[1, 5, 13, 47, 65, 131, 197, 235, 611, 655, 985, 1703, 2561, 3055, 6157, 8515, 9259, 12805, 25807, 30785, 46295, 80041, 120367, 129035, 335491, 400205, 601835, 1212929, 1677455, 6064645, 15768077, 78840385]

約数ペア:

[(1, 78840385), (5, 15768077), (13, 6064645), (47, 1677455), (65, 1212929), (131, 601835), (197, 400205), (235, 335491), (611, 129035), (655, 120367), (985, 80041), (1703, 46295), (2561, 30785), (3055, 25807), (6157, 12805), (8515, 9259)]