78736960

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1249}}^1$

素因数の和:1463

約数の個数: 56

約数和(自身を含む): 188595000

約数和(自身を除く): 109858040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1249, 1576, 1970, 2498, 3152, 3940, 4996, 6245, 6304, 7880, 9992, 12490, 12608, 15760, 19984, 24980, 31520, 39968, 49960, 63040, 79936, 99920, 199840, 246053, 399680, 492106, 984212, 1230265, 1968424, 2460530, 3936848, 4921060, 7873696, 9842120, 15747392, 19684240, 39368480, 78736960]

約数ペア:

[(1, 78736960), (2, 39368480), (4, 19684240), (5, 15747392), (8, 9842120), (10, 7873696), (16, 4921060), (20, 3936848), (32, 2460530), (40, 1968424), (64, 1230265), (80, 984212), (160, 492106), (197, 399680), (320, 246053), (394, 199840), (788, 99920), (985, 79936), (1249, 63040), (1576, 49960), (1970, 39968), (2498, 31520), (3152, 24980), (3940, 19984), (4996, 15760), (6245, 12608), (6304, 12490), (7880, 9992)]