20503280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:127

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 39492880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 41, 47, 56, 70, 76, 80, 82, 94, 95, 112, 133, 140, 152, 164, 188, 190, 205, 235, 266, 280, 287, 304, 328, 329, 376, 380, 410, 470, 532, 560, 574, 656, 658, 665, 752, 760, 779, 820, 893, 940, 1064, 1148, 1316, 1330, 1435, 1520, 1558, 1640, 1645, 1786, 1880, 1927, 2128, 2296, 2632, 2660, 2870, 3116, 3280, 3290, 3572, 3760, 3854, 3895, 4465, 4592, 5264, 5320, 5453, 5740, 6232, 6251, 6580, 7144, 7708, 7790, 8930, 9635, 10640, 10906, 11480, 12464, 12502, 13160, 13489, 14288, 15416, 15580, 17860, 19270, 21812, 22960, 25004, 26320, 26978, 27265, 30832, 31160, 31255, 35720, 36613, 38540, 43624, 50008, 53956, 54530, 62320, 62510, 67445, 71440, 73226, 77080, 87248, 100016, 107912, 109060, 125020, 134890, 146452, 154160, 183065, 215824, 218120, 250040, 256291, 269780, 292904, 366130, 436240, 500080, 512582, 539560, 585808, 732260, 1025164, 1079120, 1281455, 1464520, 2050328, 2562910, 2929040, 4100656, 5125820, 10251640, 20503280]

約数ペア:

[(1, 20503280), (2, 10251640), (4, 5125820), (5, 4100656), (7, 2929040), (8, 2562910), (10, 2050328), (14, 1464520), (16, 1281455), (19, 1079120), (20, 1025164), (28, 732260), (35, 585808), (38, 539560), (40, 512582), (41, 500080), (47, 436240), (56, 366130), (70, 292904), (76, 269780), (80, 256291), (82, 250040), (94, 218120), (95, 215824), (112, 183065), (133, 154160), (140, 146452), (152, 134890), (164, 125020), (188, 109060), (190, 107912), (205, 100016), (235, 87248), (266, 77080), (280, 73226), (287, 71440), (304, 67445), (328, 62510), (329, 62320), (376, 54530), (380, 53956), (410, 50008), (470, 43624), (532, 38540), (560, 36613), (574, 35720), (656, 31255), (658, 31160), (665, 30832), (752, 27265), (760, 26978), (779, 26320), (820, 25004), (893, 22960), (940, 21812), (1064, 19270), (1148, 17860), (1316, 15580), (1330, 15416), (1435, 14288), (1520, 13489), (1558, 13160), (1640, 12502), (1645, 12464), (1786, 11480), (1880, 10906), (1927, 10640), (2128, 9635), (2296, 8930), (2632, 7790), (2660, 7708), (2870, 7144), (3116, 6580), (3280, 6251), (3290, 6232), (3572, 5740), (3760, 5453), (3854, 5320), (3895, 5264), (4465, 4592)]