178471890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1997}}^1$

素因数の和:2344

約数の個数: 64

約数和(自身を含む): 477601920

約数和(自身を除く): 299130030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 331, 662, 993, 1655, 1986, 1997, 2979, 3310, 3994, 4965, 5958, 5991, 8937, 9930, 9985, 11982, 14895, 17874, 17973, 19970, 29790, 29955, 35946, 44685, 53919, 59910, 89370, 89865, 107838, 179730, 269595, 539190, 661007, 1322014, 1983021, 3305035, 3966042, 5949063, 6610070, 9915105, 11898126, 17847189, 19830210, 29745315, 35694378, 59490630, 89235945, 178471890]

約数ペア:

[(1, 178471890), (2, 89235945), (3, 59490630), (5, 35694378), (6, 29745315), (9, 19830210), (10, 17847189), (15, 11898126), (18, 9915105), (27, 6610070), (30, 5949063), (45, 3966042), (54, 3305035), (90, 1983021), (135, 1322014), (270, 661007), (331, 539190), (662, 269595), (993, 179730), (1655, 107838), (1986, 89865), (1997, 89370), (2979, 59910), (3310, 53919), (3994, 44685), (4965, 35946), (5958, 29955), (5991, 29790), (8937, 19970), (9930, 17973), (9985, 17874), (11982, 14895)]