20403955255

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{7457}}^1$

素因数の和:7759

約数の個数: 32

約数和(自身を含む): 25660293120

約数和(自身を除く): 5256337865

約数列:

[1, 5, 31, 127, 139, 155, 635, 695, 3937, 4309, 7457, 17653, 19685, 21545, 37285, 88265, 231167, 547243, 947039, 1036523, 1155835, 2736215, 4735195, 5182615, 29358209, 32132213, 131638421, 146791045, 160661065, 658192105, 4080791051, 20403955255]

約数ペア:

[(1, 20403955255), (5, 4080791051), (31, 658192105), (127, 160661065), (139, 146791045), (155, 131638421), (635, 32132213), (695, 29358209), (3937, 5182615), (4309, 4735195), (7457, 2736215), (17653, 1155835), (19685, 1036523), (21545, 947039), (37285, 547243), (88265, 231167)]