20497050

素因数分解:

$2^1\times 3^5\times 5^2\times 7^1\times {\mathrm{241}}^1$

素因数の和:275

約数の個数: 144

約数和(自身を含む): 65537472

約数和(自身を除く): 45040422

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 81, 90, 105, 126, 135, 150, 162, 175, 189, 210, 225, 241, 243, 270, 315, 350, 378, 405, 450, 482, 486, 525, 567, 630, 675, 723, 810, 945, 1050, 1134, 1205, 1215, 1350, 1446, 1575, 1687, 1701, 1890, 2025, 2169, 2410, 2430, 2835, 3150, 3374, 3402, 3615, 4050, 4338, 4725, 5061, 5670, 6025, 6075, 6507, 7230, 8435, 8505, 9450, 10122, 10845, 12050, 12150, 13014, 14175, 15183, 16870, 17010, 18075, 19521, 21690, 25305, 28350, 30366, 32535, 36150, 39042, 42175, 42525, 45549, 50610, 54225, 58563, 65070, 75915, 84350, 85050, 91098, 97605, 108450, 117126, 126525, 136647, 151830, 162675, 195210, 227745, 253050, 273294, 292815, 325350, 379575, 409941, 455490, 488025, 585630, 683235, 759150, 819882, 976050, 1138725, 1366470, 1464075, 2049705, 2277450, 2928150, 3416175, 4099410, 6832350, 10248525, 20497050]

約数ペア:

[(1, 20497050), (2, 10248525), (3, 6832350), (5, 4099410), (6, 3416175), (7, 2928150), (9, 2277450), (10, 2049705), (14, 1464075), (15, 1366470), (18, 1138725), (21, 976050), (25, 819882), (27, 759150), (30, 683235), (35, 585630), (42, 488025), (45, 455490), (50, 409941), (54, 379575), (63, 325350), (70, 292815), (75, 273294), (81, 253050), (90, 227745), (105, 195210), (126, 162675), (135, 151830), (150, 136647), (162, 126525), (175, 117126), (189, 108450), (210, 97605), (225, 91098), (241, 85050), (243, 84350), (270, 75915), (315, 65070), (350, 58563), (378, 54225), (405, 50610), (450, 45549), (482, 42525), (486, 42175), (525, 39042), (567, 36150), (630, 32535), (675, 30366), (723, 28350), (810, 25305), (945, 21690), (1050, 19521), (1134, 18075), (1205, 17010), (1215, 16870), (1350, 15183), (1446, 14175), (1575, 13014), (1687, 12150), (1701, 12050), (1890, 10845), (2025, 10122), (2169, 9450), (2410, 8505), (2430, 8435), (2835, 7230), (3150, 6507), (3374, 6075), (3402, 6025), (3615, 5670), (4050, 5061), (4338, 4725)]