1287914654

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{4451}}^1$

素因数の和:4856

約数の個数: 32

約数和(自身を含む): 2154055680

約数和(自身を除く): 866141026

約数列:

[1, 2, 13, 26, 31, 62, 359, 403, 718, 806, 4451, 4667, 8902, 9334, 11129, 22258, 57863, 115726, 137981, 144677, 275962, 289354, 1597909, 1793753, 3195818, 3587506, 20772817, 41545634, 49535179, 99070358, 643957327, 1287914654]

約数ペア:

[(1, 1287914654), (2, 643957327), (13, 99070358), (26, 49535179), (31, 41545634), (62, 20772817), (359, 3587506), (403, 3195818), (718, 1793753), (806, 1597909), (4451, 289354), (4667, 275962), (8902, 144677), (9334, 137981), (11129, 115726), (22258, 57863)]