331387120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1753}}^1$

素因数の和:1922

約数の個数: 80

約数和(自身を含む): 822134880

約数和(自身を除く): 490747760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 139, 170, 272, 278, 340, 556, 680, 695, 1112, 1360, 1390, 1753, 2224, 2363, 2780, 3506, 4726, 5560, 7012, 8765, 9452, 11120, 11815, 14024, 17530, 18904, 23630, 28048, 29801, 35060, 37808, 47260, 59602, 70120, 94520, 119204, 140240, 149005, 189040, 238408, 243667, 298010, 476816, 487334, 596020, 974668, 1192040, 1218335, 1949336, 2384080, 2436670, 3898672, 4142339, 4873340, 8284678, 9746680, 16569356, 19493360, 20711695, 33138712, 41423390, 66277424, 82846780, 165693560, 331387120]

約数ペア:

[(1, 331387120), (2, 165693560), (4, 82846780), (5, 66277424), (8, 41423390), (10, 33138712), (16, 20711695), (17, 19493360), (20, 16569356), (34, 9746680), (40, 8284678), (68, 4873340), (80, 4142339), (85, 3898672), (136, 2436670), (139, 2384080), (170, 1949336), (272, 1218335), (278, 1192040), (340, 974668), (556, 596020), (680, 487334), (695, 476816), (1112, 298010), (1360, 243667), (1390, 238408), (1753, 189040), (2224, 149005), (2363, 140240), (2780, 119204), (3506, 94520), (4726, 70120), (5560, 59602), (7012, 47260), (8765, 37808), (9452, 35060), (11120, 29801), (11815, 28048), (14024, 23630), (17530, 18904)]