20455701075

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{37123}}^1$

素因数の和:37249

約数の個数: 72

約数和(自身を含む): 38300088320

約数和(自身を除く): 17844387245

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 79, 93, 155, 225, 237, 279, 395, 465, 711, 775, 1185, 1395, 1975, 2325, 2449, 3555, 5925, 6975, 7347, 12245, 17775, 22041, 36735, 37123, 61225, 110205, 111369, 183675, 185615, 334107, 551025, 556845, 928075, 1150813, 1670535, 2784225, 2932717, 3452439, 5754065, 8352675, 8798151, 10357317, 14663585, 17262195, 26394453, 28770325, 43990755, 51786585, 73317925, 86310975, 90914227, 131972265, 219953775, 258932925, 272742681, 454571135, 659861325, 818228043, 1363713405, 2272855675, 4091140215, 6818567025, 20455701075]

約数ペア:

[(1, 20455701075), (3, 6818567025), (5, 4091140215), (9, 2272855675), (15, 1363713405), (25, 818228043), (31, 659861325), (45, 454571135), (75, 272742681), (79, 258932925), (93, 219953775), (155, 131972265), (225, 90914227), (237, 86310975), (279, 73317925), (395, 51786585), (465, 43990755), (711, 28770325), (775, 26394453), (1185, 17262195), (1395, 14663585), (1975, 10357317), (2325, 8798151), (2449, 8352675), (3555, 5754065), (5925, 3452439), (6975, 2932717), (7347, 2784225), (12245, 1670535), (17775, 1150813), (22041, 928075), (36735, 556845), (37123, 551025), (61225, 334107), (110205, 185615), (111369, 183675)]