256735185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 481904640

約数和(自身を除く): 225169455

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 89, 105, 249, 267, 331, 415, 445, 581, 623, 993, 1245, 1335, 1655, 1743, 1869, 2317, 2905, 3115, 4965, 6951, 7387, 8715, 9345, 11585, 22161, 27473, 29459, 34755, 36935, 51709, 82419, 88377, 110805, 137365, 147295, 155127, 192311, 206213, 258545, 412095, 441885, 576933, 618639, 775635, 961555, 1031065, 2445097, 2884665, 3093195, 7335291, 12225485, 17115679, 36676455, 51347037, 85578395, 256735185]

約数ペア:

[(1, 256735185), (3, 85578395), (5, 51347037), (7, 36676455), (15, 17115679), (21, 12225485), (35, 7335291), (83, 3093195), (89, 2884665), (105, 2445097), (249, 1031065), (267, 961555), (331, 775635), (415, 618639), (445, 576933), (581, 441885), (623, 412095), (993, 258545), (1245, 206213), (1335, 192311), (1655, 155127), (1743, 147295), (1869, 137365), (2317, 110805), (2905, 88377), (3115, 82419), (4965, 51709), (6951, 36935), (7387, 34755), (8715, 29459), (9345, 27473), (11585, 22161)]