19657700

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3709}}^1$

素因数の和:3776

約数の個数: 36

約数和(自身を含む): 43473780

約数和(自身を除く): 23816080

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3709, 5300, 7418, 14836, 18545, 37090, 74180, 92725, 185450, 196577, 370900, 393154, 786308, 982885, 1965770, 3931540, 4914425, 9828850, 19657700]

約数ペア:

[(1, 19657700), (2, 9828850), (4, 4914425), (5, 3931540), (10, 1965770), (20, 982885), (25, 786308), (50, 393154), (53, 370900), (100, 196577), (106, 185450), (212, 92725), (265, 74180), (530, 37090), (1060, 18545), (1325, 14836), (2650, 7418), (3709, 5300)]