742243640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{983}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 1714521600

約数和(自身を除く): 972277960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 439, 860, 878, 983, 1720, 1756, 1966, 2195, 3512, 3932, 4390, 4915, 7864, 8780, 9830, 17560, 18877, 19660, 37754, 39320, 42269, 75508, 84538, 94385, 151016, 169076, 188770, 211345, 338152, 377540, 422690, 431537, 755080, 845380, 863074, 1690760, 1726148, 2157685, 3452296, 4315370, 8630740, 17261480, 18556091, 37112182, 74224364, 92780455, 148448728, 185560910, 371121820, 742243640]

約数ペア:

[(1, 742243640), (2, 371121820), (4, 185560910), (5, 148448728), (8, 92780455), (10, 74224364), (20, 37112182), (40, 18556091), (43, 17261480), (86, 8630740), (172, 4315370), (215, 3452296), (344, 2157685), (430, 1726148), (439, 1690760), (860, 863074), (878, 845380), (983, 755080), (1720, 431537), (1756, 422690), (1966, 377540), (2195, 338152), (3512, 211345), (3932, 188770), (4390, 169076), (4915, 151016), (7864, 94385), (8780, 84538), (9830, 75508), (17560, 42269), (18877, 39320), (19660, 37754)]