251044456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 519321600

約数和(自身を除く): 268277144

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 127, 166, 229, 254, 332, 458, 508, 664, 916, 1016, 1079, 1651, 1832, 2158, 2977, 3302, 4316, 5954, 6604, 8632, 10541, 11908, 13208, 19007, 21082, 23816, 29083, 38014, 42164, 58166, 76028, 84328, 116332, 137033, 152056, 232664, 247091, 274066, 378079, 494182, 548132, 756158, 988364, 1096264, 1512316, 1976728, 2413889, 3024632, 4827778, 9655556, 19311112, 31380557, 62761114, 125522228, 251044456]

約数ペア:

[(1, 251044456), (2, 125522228), (4, 62761114), (8, 31380557), (13, 19311112), (26, 9655556), (52, 4827778), (83, 3024632), (104, 2413889), (127, 1976728), (166, 1512316), (229, 1096264), (254, 988364), (332, 756158), (458, 548132), (508, 494182), (664, 378079), (916, 274066), (1016, 247091), (1079, 232664), (1651, 152056), (1832, 137033), (2158, 116332), (2977, 84328), (3302, 76028), (4316, 58166), (5954, 42164), (6604, 38014), (8632, 29083), (10541, 23816), (11908, 21082), (13208, 19007)]