20919180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20509}}^1$

素因数の和:20538

約数の個数: 48

約数和(自身を含む): 62022240

約数和(自身を除く): 41103060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20509, 41018, 61527, 82036, 102545, 123054, 205090, 246108, 307635, 348653, 410180, 615270, 697306, 1045959, 1230540, 1394612, 1743265, 2091918, 3486530, 4183836, 5229795, 6973060, 10459590, 20919180]

約数ペア:

[(1, 20919180), (2, 10459590), (3, 6973060), (4, 5229795), (5, 4183836), (6, 3486530), (10, 2091918), (12, 1743265), (15, 1394612), (17, 1230540), (20, 1045959), (30, 697306), (34, 615270), (51, 410180), (60, 348653), (68, 307635), (85, 246108), (102, 205090), (170, 123054), (204, 102545), (255, 82036), (340, 61527), (510, 41018), (1020, 20509)]