1978778895

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{197779}}^1$

素因数の和:197839

約数の個数: 32

約数和(自身を含む): 3417638400

約数和(自身を除く): 1438859505

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 2001, 3335, 10005, 197779, 593337, 988895, 2966685, 4548917, 5735591, 13646751, 17206773, 22744585, 28677955, 68233755, 86033865, 131918593, 395755779, 659592965, 1978778895]

約数ペア:

[(1, 1978778895), (3, 659592965), (5, 395755779), (15, 131918593), (23, 86033865), (29, 68233755), (69, 28677955), (87, 22744585), (115, 17206773), (145, 13646751), (345, 5735591), (435, 4548917), (667, 2966685), (2001, 988895), (3335, 593337), (10005, 197779)]