78047960

素因数分解:

$2^3\times 5^1\times {\mathrm{1951199}}^1$

素因数の和:1951210

約数の個数: 16

約数和(自身を含む): 175608000

約数和(自身を除く): 97560040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1951199, 3902398, 7804796, 9755995, 15609592, 19511990, 39023980, 78047960]

約数ペア:

[(1, 78047960), (2, 39023980), (4, 19511990), (5, 15609592), (8, 9755995), (10, 7804796), (20, 3902398), (40, 1951199)]