28766745

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 60170880

約数和(自身を除く): 31404135

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 73, 81, 105, 135, 139, 189, 219, 315, 365, 405, 417, 511, 567, 657, 695, 945, 973, 1095, 1251, 1533, 1971, 2085, 2555, 2835, 2919, 3285, 3753, 4599, 4865, 5913, 6255, 7665, 8757, 9855, 10147, 11259, 13797, 14595, 18765, 22995, 26271, 29565, 30441, 41391, 43785, 50735, 56295, 68985, 71029, 78813, 91323, 131355, 152205, 206955, 213087, 273969, 355145, 394065, 456615, 639261, 821907, 1065435, 1369845, 1917783, 3196305, 4109535, 5753349, 9588915, 28766745]

約数ペア:

[(1, 28766745), (3, 9588915), (5, 5753349), (7, 4109535), (9, 3196305), (15, 1917783), (21, 1369845), (27, 1065435), (35, 821907), (45, 639261), (63, 456615), (73, 394065), (81, 355145), (105, 273969), (135, 213087), (139, 206955), (189, 152205), (219, 131355), (315, 91323), (365, 78813), (405, 71029), (417, 68985), (511, 56295), (567, 50735), (657, 43785), (695, 41391), (945, 30441), (973, 29565), (1095, 26271), (1251, 22995), (1533, 18765), (1971, 14595), (2085, 13797), (2555, 11259), (2835, 10147), (2919, 9855), (3285, 8757), (3753, 7665), (4599, 6255), (4865, 5913)]