81278244

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{31799}}^1$

素因数の和:31880

約数の個数: 36

約数和(自身を含む): 208353600

約数和(自身を除く): 127075356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 31799, 63598, 95397, 127196, 190794, 286191, 381588, 572382, 1144764, 2257729, 4515458, 6773187, 9030916, 13546374, 20319561, 27092748, 40639122, 81278244]

約数ペア:

[(1, 81278244), (2, 40639122), (3, 27092748), (4, 20319561), (6, 13546374), (9, 9030916), (12, 6773187), (18, 4515458), (36, 2257729), (71, 1144764), (142, 572382), (213, 381588), (284, 286191), (426, 190794), (639, 127196), (852, 95397), (1278, 63598), (2556, 31799)]