1078380

素因数分解:

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

素因数の和:2015

約数の個数: 48

約数和(自身を含む): 3356640

約数和(自身を除く): 2278260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 1997, 3994, 5991, 7988, 9985, 11982, 17973, 19970, 23964, 29955, 35946, 39940, 53919, 59910, 71892, 89865, 107838, 119820, 179730, 215676, 269595, 359460, 539190, 1078380]

約数ペア:

[(1, 1078380), (2, 539190), (3, 359460), (4, 269595), (5, 215676), (6, 179730), (9, 119820), (10, 107838), (12, 89865), (15, 71892), (18, 59910), (20, 53919), (27, 39940), (30, 35946), (36, 29955), (45, 23964), (54, 19970), (60, 17973), (90, 11982), (108, 9985), (135, 7988), (180, 5991), (270, 3994), (540, 1997)]