178380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{991}}^1$

素因数の和:1006

約数の個数: 36

約数和(自身を含む): 541632

約数和(自身を除く): 363252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 991, 1982, 2973, 3964, 4955, 5946, 8919, 9910, 11892, 14865, 17838, 19820, 29730, 35676, 44595, 59460, 89190, 178380]

約数ペア:

[(1, 178380), (2, 89190), (3, 59460), (4, 44595), (5, 35676), (6, 29730), (9, 19820), (10, 17838), (12, 14865), (15, 11892), (18, 9910), (20, 8919), (30, 5946), (36, 4955), (45, 3964), (60, 2973), (90, 1982), (180, 991)]