87777440

素因数分解:

$2^5\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1787}}^1$

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 208166112

約数和(自身を除く): 120388672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 307, 614, 1228, 1535, 1787, 2456, 3070, 3574, 4912, 6140, 7148, 8935, 9824, 12280, 14296, 17870, 24560, 28592, 35740, 49120, 57184, 71480, 142960, 285920, 548609, 1097218, 2194436, 2743045, 4388872, 5486090, 8777744, 10972180, 17555488, 21944360, 43888720, 87777440]

約数ペア:

[(1, 87777440), (2, 43888720), (4, 21944360), (5, 17555488), (8, 10972180), (10, 8777744), (16, 5486090), (20, 4388872), (32, 2743045), (40, 2194436), (80, 1097218), (160, 548609), (307, 285920), (614, 142960), (1228, 71480), (1535, 57184), (1787, 49120), (2456, 35740), (3070, 28592), (3574, 24560), (4912, 17870), (6140, 14296), (7148, 12280), (8935, 9824)]