1028667020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{1993}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 2188837728

約数和(自身を除く): 1160170708

約数列:

[1, 2, 4, 5, 10, 20, 131, 197, 262, 394, 524, 655, 788, 985, 1310, 1970, 1993, 2620, 3940, 3986, 7972, 9965, 19930, 25807, 39860, 51614, 103228, 129035, 258070, 261083, 392621, 516140, 522166, 785242, 1044332, 1305415, 1570484, 1963105, 2610830, 3926210, 5221660, 7852420, 51433351, 102866702, 205733404, 257166755, 514333510, 1028667020]

約数ペア:

[(1, 1028667020), (2, 514333510), (4, 257166755), (5, 205733404), (10, 102866702), (20, 51433351), (131, 7852420), (197, 5221660), (262, 3926210), (394, 2610830), (524, 1963105), (655, 1570484), (788, 1305415), (985, 1044332), (1310, 785242), (1970, 522166), (1993, 516140), (2620, 392621), (3940, 261083), (3986, 258070), (7972, 129035), (9965, 103228), (19930, 51614), (25807, 39860)]