1289960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 3525120

約数和(自身を除く): 2235160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 271, 280, 340, 476, 542, 595, 680, 952, 1084, 1190, 1355, 1897, 2168, 2380, 2710, 3794, 4607, 4760, 5420, 7588, 9214, 9485, 10840, 15176, 18428, 18970, 23035, 32249, 36856, 37940, 46070, 64498, 75880, 92140, 128996, 161245, 184280, 257992, 322490, 644980, 1289960]

約数ペア:

[(1, 1289960), (2, 644980), (4, 322490), (5, 257992), (7, 184280), (8, 161245), (10, 128996), (14, 92140), (17, 75880), (20, 64498), (28, 46070), (34, 37940), (35, 36856), (40, 32249), (56, 23035), (68, 18970), (70, 18428), (85, 15176), (119, 10840), (136, 9485), (140, 9214), (170, 7588), (238, 5420), (271, 4760), (280, 4607), (340, 3794), (476, 2710), (542, 2380), (595, 2168), (680, 1897), (952, 1355), (1084, 1190)]