40647620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1231}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 92725248

約数和(自身を除く): 52077628

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1231, 1270, 1651, 2462, 2540, 3302, 4924, 6155, 6604, 8255, 12310, 16003, 16510, 24620, 32006, 33020, 64012, 80015, 156337, 160030, 312674, 320060, 625348, 781685, 1563370, 2032381, 3126740, 4064762, 8129524, 10161905, 20323810, 40647620]

約数ペア:

[(1, 40647620), (2, 20323810), (4, 10161905), (5, 8129524), (10, 4064762), (13, 3126740), (20, 2032381), (26, 1563370), (52, 781685), (65, 625348), (127, 320060), (130, 312674), (254, 160030), (260, 156337), (508, 80015), (635, 64012), (1231, 33020), (1270, 32006), (1651, 24620), (2462, 16510), (2540, 16003), (3302, 12310), (4924, 8255), (6155, 6604)]