20177880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{929}}^1$

素因数の和:1124

約数の個数: 64

約数和(自身を含む): 60933600

約数和(自身を除く): 40755720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 181, 362, 543, 724, 905, 929, 1086, 1448, 1810, 1858, 2172, 2715, 2787, 3620, 3716, 4344, 4645, 5430, 5574, 7240, 7432, 9290, 10860, 11148, 13935, 18580, 21720, 22296, 27870, 37160, 55740, 111480, 168149, 336298, 504447, 672596, 840745, 1008894, 1345192, 1681490, 2017788, 2522235, 3362980, 4035576, 5044470, 6725960, 10088940, 20177880]

約数ペア:

[(1, 20177880), (2, 10088940), (3, 6725960), (4, 5044470), (5, 4035576), (6, 3362980), (8, 2522235), (10, 2017788), (12, 1681490), (15, 1345192), (20, 1008894), (24, 840745), (30, 672596), (40, 504447), (60, 336298), (120, 168149), (181, 111480), (362, 55740), (543, 37160), (724, 27870), (905, 22296), (929, 21720), (1086, 18580), (1448, 13935), (1810, 11148), (1858, 10860), (2172, 9290), (2715, 7432), (2787, 7240), (3620, 5574), (3716, 5430), (4344, 4645)]