12778380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{70991}}^1$

素因数の和:71006

約数の個数: 36

約数和(自身を含む): 38761632

約数和(自身を除く): 25983252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 70991, 141982, 212973, 283964, 354955, 425946, 638919, 709910, 851892, 1064865, 1277838, 1419820, 2129730, 2555676, 3194595, 4259460, 6389190, 12778380]

約数ペア:

[(1, 12778380), (2, 6389190), (3, 4259460), (4, 3194595), (5, 2555676), (6, 2129730), (9, 1419820), (10, 1277838), (12, 1064865), (15, 851892), (18, 709910), (20, 638919), (30, 425946), (36, 354955), (45, 283964), (60, 212973), (90, 141982), (180, 70991)]