77879640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{648997}}^1$

素因数の和:649011

約数の個数: 32

約数和(自身を含む): 233639280

約数和(自身を除く): 155759640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 648997, 1297994, 1946991, 2595988, 3244985, 3893982, 5191976, 6489970, 7787964, 9734955, 12979940, 15575928, 19469910, 25959880, 38939820, 77879640]

約数ペア:

[(1, 77879640), (2, 38939820), (3, 25959880), (4, 19469910), (5, 15575928), (6, 12979940), (8, 9734955), (10, 7787964), (12, 6489970), (15, 5191976), (20, 3893982), (24, 3244985), (30, 2595988), (40, 1946991), (60, 1297994), (120, 648997)]