56721440

素因数分解:

$2^5\times 5^1\times {\mathrm{461}}^1\times {\mathrm{769}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 134469720

約数和(自身を除く): 77748280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 461, 769, 922, 1538, 1844, 2305, 3076, 3688, 3845, 4610, 6152, 7376, 7690, 9220, 12304, 14752, 15380, 18440, 24608, 30760, 36880, 61520, 73760, 123040, 354509, 709018, 1418036, 1772545, 2836072, 3545090, 5672144, 7090180, 11344288, 14180360, 28360720, 56721440]

約数ペア:

[(1, 56721440), (2, 28360720), (4, 14180360), (5, 11344288), (8, 7090180), (10, 5672144), (16, 3545090), (20, 2836072), (32, 1772545), (40, 1418036), (80, 709018), (160, 354509), (461, 123040), (769, 73760), (922, 61520), (1538, 36880), (1844, 30760), (2305, 24608), (3076, 18440), (3688, 15380), (3845, 14752), (4610, 12304), (6152, 9220), (7376, 7690)]