260096720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{557}}^1$

素因数の和:1032

約数の個数: 80

約数和(自身を含む): 653864400

約数和(自身を除く): 393767680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 449, 520, 557, 898, 1040, 1114, 1796, 2228, 2245, 2785, 3592, 4456, 4490, 5570, 5837, 7184, 7241, 8912, 8980, 11140, 11674, 14482, 17960, 22280, 23348, 28964, 29185, 35920, 36205, 44560, 46696, 57928, 58370, 72410, 93392, 115856, 116740, 144820, 233480, 250093, 289640, 466960, 500186, 579280, 1000372, 1250465, 2000744, 2500930, 3251209, 4001488, 5001860, 6502418, 10003720, 13004836, 16256045, 20007440, 26009672, 32512090, 52019344, 65024180, 130048360, 260096720]

約数ペア:

[(1, 260096720), (2, 130048360), (4, 65024180), (5, 52019344), (8, 32512090), (10, 26009672), (13, 20007440), (16, 16256045), (20, 13004836), (26, 10003720), (40, 6502418), (52, 5001860), (65, 4001488), (80, 3251209), (104, 2500930), (130, 2000744), (208, 1250465), (260, 1000372), (449, 579280), (520, 500186), (557, 466960), (898, 289640), (1040, 250093), (1114, 233480), (1796, 144820), (2228, 116740), (2245, 115856), (2785, 93392), (3592, 72410), (4456, 58370), (4490, 57928), (5570, 46696), (5837, 44560), (7184, 36205), (7241, 35920), (8912, 29185), (8980, 28964), (11140, 23348), (11674, 22280), (14482, 17960)]