278399640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2319997}}^1$

素因数の和:2320011

約数の個数: 32

約数和(自身を含む): 835199280

約数和(自身を除く): 556799640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2319997, 4639994, 6959991, 9279988, 11599985, 13919982, 18559976, 23199970, 27839964, 34799955, 46399940, 55679928, 69599910, 92799880, 139199820, 278399640]

約数ペア:

[(1, 278399640), (2, 139199820), (3, 92799880), (4, 69599910), (5, 55679928), (6, 46399940), (8, 34799955), (10, 27839964), (12, 23199970), (15, 18559976), (20, 13919982), (24, 11599985), (30, 9279988), (40, 6959991), (60, 4639994), (120, 2319997)]