21707520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5653}}^1$

素因数の和:5677

約数の個数: 72

約数和(自身を含む): 69340656

約数和(自身を除く): 47633136

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5653, 11306, 16959, 22612, 28265, 33918, 45224, 56530, 67836, 84795, 90448, 113060, 135672, 169590, 180896, 226120, 271344, 339180, 361792, 452240, 542688, 678360, 723584, 904480, 1085376, 1356720, 1447168, 1808960, 2170752, 2713440, 3617920, 4341504, 5426880, 7235840, 10853760, 21707520]

約数ペア:

[(1, 21707520), (2, 10853760), (3, 7235840), (4, 5426880), (5, 4341504), (6, 3617920), (8, 2713440), (10, 2170752), (12, 1808960), (15, 1447168), (16, 1356720), (20, 1085376), (24, 904480), (30, 723584), (32, 678360), (40, 542688), (48, 452240), (60, 361792), (64, 339180), (80, 271344), (96, 226120), (120, 180896), (128, 169590), (160, 135672), (192, 113060), (240, 90448), (256, 84795), (320, 67836), (384, 56530), (480, 45224), (640, 33918), (768, 28265), (960, 22612), (1280, 16959), (1920, 11306), (3840, 5653)]