209916560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:329

約数の個数: 160

約数和(自身を含む): 595795200

約数和(自身を除く): 385878640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 109, 112, 133, 140, 152, 181, 190, 218, 266, 280, 304, 362, 380, 436, 532, 545, 560, 665, 724, 760, 763, 872, 905, 1064, 1090, 1267, 1330, 1448, 1520, 1526, 1744, 1810, 2071, 2128, 2180, 2534, 2660, 2896, 3052, 3439, 3620, 3815, 4142, 4360, 5068, 5320, 6104, 6335, 6878, 7240, 7630, 8284, 8720, 10136, 10355, 10640, 12208, 12670, 13756, 14480, 14497, 15260, 16568, 17195, 19729, 20272, 20710, 24073, 25340, 27512, 28994, 30520, 33136, 34390, 39458, 41420, 48146, 50680, 55024, 57988, 61040, 68780, 72485, 78916, 82840, 96292, 98645, 101360, 115976, 120365, 137560, 138103, 144970, 157832, 165680, 192584, 197290, 231952, 240730, 275120, 276206, 289940, 315664, 374851, 385168, 394580, 481460, 552412, 579880, 690515, 749702, 789160, 962920, 1104824, 1159760, 1381030, 1499404, 1578320, 1874255, 1925840, 2209648, 2623957, 2762060, 2998808, 3748510, 5247914, 5524120, 5997616, 7497020, 10495828, 11048240, 13119785, 14994040, 20991656, 26239570, 29988080, 41983312, 52479140, 104958280, 209916560]

約数ペア:

[(1, 209916560), (2, 104958280), (4, 52479140), (5, 41983312), (7, 29988080), (8, 26239570), (10, 20991656), (14, 14994040), (16, 13119785), (19, 11048240), (20, 10495828), (28, 7497020), (35, 5997616), (38, 5524120), (40, 5247914), (56, 3748510), (70, 2998808), (76, 2762060), (80, 2623957), (95, 2209648), (109, 1925840), (112, 1874255), (133, 1578320), (140, 1499404), (152, 1381030), (181, 1159760), (190, 1104824), (218, 962920), (266, 789160), (280, 749702), (304, 690515), (362, 579880), (380, 552412), (436, 481460), (532, 394580), (545, 385168), (560, 374851), (665, 315664), (724, 289940), (760, 276206), (763, 275120), (872, 240730), (905, 231952), (1064, 197290), (1090, 192584), (1267, 165680), (1330, 157832), (1448, 144970), (1520, 138103), (1526, 137560), (1744, 120365), (1810, 115976), (2071, 101360), (2128, 98645), (2180, 96292), (2534, 82840), (2660, 78916), (2896, 72485), (3052, 68780), (3439, 61040), (3620, 57988), (3815, 55024), (4142, 50680), (4360, 48146), (5068, 41420), (5320, 39458), (6104, 34390), (6335, 33136), (6878, 30520), (7240, 28994), (7630, 27512), (8284, 25340), (8720, 24073), (10136, 20710), (10355, 20272), (10640, 19729), (12208, 17195), (12670, 16568), (13756, 15260), (14480, 14497)]