1978889975

素因数分解:

$5^2\times {\mathrm{457}}^1\times {\mathrm{173207}}^1$

素因数の和:173674

約数の個数: 12

約数和(自身を含む): 2459207184

約数和(自身を除く): 480317209

約数列:

[1, 5, 25, 457, 2285, 11425, 173207, 866035, 4330175, 79155599, 395777995, 1978889975]

約数ペア:

[(1, 1978889975), (5, 395777995), (25, 79155599), (457, 4330175), (2285, 866035), (11425, 173207)]