217260820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81677}}^1$

素因数の和:81712

約数の個数: 48

約数和(自身を含む): 548876160

約数和(自身を除く): 331615340

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 81677, 163354, 326708, 408385, 571739, 816770, 1143478, 1551863, 1633540, 2286956, 2858695, 3103726, 5717390, 6207452, 7759315, 10863041, 11434780, 15518630, 21726082, 31037260, 43452164, 54315205, 108630410, 217260820]

約数ペア:

[(1, 217260820), (2, 108630410), (4, 54315205), (5, 43452164), (7, 31037260), (10, 21726082), (14, 15518630), (19, 11434780), (20, 10863041), (28, 7759315), (35, 6207452), (38, 5717390), (70, 3103726), (76, 2858695), (95, 2286956), (133, 1633540), (140, 1551863), (190, 1143478), (266, 816770), (380, 571739), (532, 408385), (665, 326708), (1330, 163354), (2660, 81677)]