261456720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8191}}^1$

素因数の和:8233

約数の個数: 160

約数和(自身を含む): 975175680

約数和(自身を除く): 713718960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 665, 760, 798, 840, 912, 1064, 1140, 1330, 1520, 1596, 1680, 1995, 2128, 2280, 2660, 3192, 3990, 4560, 5320, 6384, 7980, 8191, 10640, 15960, 16382, 24573, 31920, 32764, 40955, 49146, 57337, 65528, 81910, 98292, 114674, 122865, 131056, 155629, 163820, 172011, 196584, 229348, 245730, 286685, 311258, 327640, 344022, 393168, 458696, 466887, 491460, 573370, 622516, 655280, 688044, 778145, 860055, 917392, 933774, 982920, 1089403, 1146740, 1245032, 1376088, 1556290, 1720110, 1867548, 1965840, 2178806, 2293480, 2334435, 2490064, 2752176, 3112580, 3268209, 3440220, 3735096, 4357612, 4586960, 4668870, 5447015, 6225160, 6536418, 6880440, 7470192, 8715224, 9337740, 10894030, 12450320, 13072836, 13760880, 16341045, 17430448, 18675480, 21788060, 26145672, 32682090, 37350960, 43576120, 52291344, 65364180, 87152240, 130728360, 261456720]

約数ペア:

[(1, 261456720), (2, 130728360), (3, 87152240), (4, 65364180), (5, 52291344), (6, 43576120), (7, 37350960), (8, 32682090), (10, 26145672), (12, 21788060), (14, 18675480), (15, 17430448), (16, 16341045), (19, 13760880), (20, 13072836), (21, 12450320), (24, 10894030), (28, 9337740), (30, 8715224), (35, 7470192), (38, 6880440), (40, 6536418), (42, 6225160), (48, 5447015), (56, 4668870), (57, 4586960), (60, 4357612), (70, 3735096), (76, 3440220), (80, 3268209), (84, 3112580), (95, 2752176), (105, 2490064), (112, 2334435), (114, 2293480), (120, 2178806), (133, 1965840), (140, 1867548), (152, 1720110), (168, 1556290), (190, 1376088), (210, 1245032), (228, 1146740), (240, 1089403), (266, 982920), (280, 933774), (285, 917392), (304, 860055), (336, 778145), (380, 688044), (399, 655280), (420, 622516), (456, 573370), (532, 491460), (560, 466887), (570, 458696), (665, 393168), (760, 344022), (798, 327640), (840, 311258), (912, 286685), (1064, 245730), (1140, 229348), (1330, 196584), (1520, 172011), (1596, 163820), (1680, 155629), (1995, 131056), (2128, 122865), (2280, 114674), (2660, 98292), (3192, 81910), (3990, 65528), (4560, 57337), (5320, 49146), (6384, 40955), (7980, 32764), (8191, 31920), (10640, 24573), (15960, 16382)]