20785600

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1181}}^1$

素因数の和:1214

約数の個数: 84

約数和(自身を含む): 55842408

約数和(自身を除く): 35056808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 160, 176, 200, 220, 275, 320, 352, 400, 440, 550, 704, 800, 880, 1100, 1181, 1600, 1760, 2200, 2362, 3520, 4400, 4724, 5905, 8800, 9448, 11810, 12991, 17600, 18896, 23620, 25982, 29525, 37792, 47240, 51964, 59050, 64955, 75584, 94480, 103928, 118100, 129910, 188960, 207856, 236200, 259820, 324775, 377920, 415712, 472400, 519640, 649550, 831424, 944800, 1039280, 1299100, 1889600, 2078560, 2598200, 4157120, 5196400, 10392800, 20785600]

約数ペア:

[(1, 20785600), (2, 10392800), (4, 5196400), (5, 4157120), (8, 2598200), (10, 2078560), (11, 1889600), (16, 1299100), (20, 1039280), (22, 944800), (25, 831424), (32, 649550), (40, 519640), (44, 472400), (50, 415712), (55, 377920), (64, 324775), (80, 259820), (88, 236200), (100, 207856), (110, 188960), (160, 129910), (176, 118100), (200, 103928), (220, 94480), (275, 75584), (320, 64955), (352, 59050), (400, 51964), (440, 47240), (550, 37792), (704, 29525), (800, 25982), (880, 23620), (1100, 18896), (1181, 17600), (1600, 12991), (1760, 11810), (2200, 9448), (2362, 8800), (3520, 5905), (4400, 4724)]