1813308080

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1\times {\mathrm{661}}^1$

素因数の和:1374

約数の個数: 80

約数和(自身を含む): 4308634944

約数和(自身を除く): 2495326864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 647, 661, 848, 1060, 1294, 1322, 2120, 2588, 2644, 3235, 3305, 4240, 5176, 5288, 6470, 6610, 10352, 10576, 12940, 13220, 25880, 26440, 34291, 35033, 51760, 52880, 68582, 70066, 137164, 140132, 171455, 175165, 274328, 280264, 342910, 350330, 427667, 548656, 560528, 685820, 700660, 855334, 1371640, 1401320, 1710668, 2138335, 2743280, 2802640, 3421336, 4276670, 6842672, 8553340, 17106680, 22666351, 34213360, 45332702, 90665404, 113331755, 181330808, 226663510, 362661616, 453327020, 906654040, 1813308080]

約数ペア:

[(1, 1813308080), (2, 906654040), (4, 453327020), (5, 362661616), (8, 226663510), (10, 181330808), (16, 113331755), (20, 90665404), (40, 45332702), (53, 34213360), (80, 22666351), (106, 17106680), (212, 8553340), (265, 6842672), (424, 4276670), (530, 3421336), (647, 2802640), (661, 2743280), (848, 2138335), (1060, 1710668), (1294, 1401320), (1322, 1371640), (2120, 855334), (2588, 700660), (2644, 685820), (3235, 560528), (3305, 548656), (4240, 427667), (5176, 350330), (5288, 342910), (6470, 280264), (6610, 274328), (10352, 175165), (10576, 171455), (12940, 140132), (13220, 137164), (25880, 70066), (26440, 68582), (34291, 52880), (35033, 51760)]