20196777515

素因数分解:

$5^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1\times {\mathrm{283}}^1\times {\mathrm{397}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 24645497280

約数和(自身を除く): 4448719765

約数列:

[1, 5, 157, 229, 283, 397, 785, 1145, 1415, 1985, 35953, 44431, 62329, 64807, 90913, 112351, 179765, 222155, 311645, 324035, 454565, 561755, 10174699, 14273341, 17639107, 25728379, 50873495, 71366705, 88195535, 128641895, 4039355503, 20196777515]

約数ペア:

[(1, 20196777515), (5, 4039355503), (157, 128641895), (229, 88195535), (283, 71366705), (397, 50873495), (785, 25728379), (1145, 17639107), (1415, 14273341), (1985, 10174699), (35953, 561755), (44431, 454565), (62329, 324035), (64807, 311645), (90913, 222155), (112351, 179765)]