19729250

素因数分解:

$2^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{1489}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 37655280

約数和(自身を除く): 17926030

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 125, 250, 265, 530, 1325, 1489, 2650, 2978, 6625, 7445, 13250, 14890, 37225, 74450, 78917, 157834, 186125, 372250, 394585, 789170, 1972925, 3945850, 9864625, 19729250]

約数ペア:

[(1, 19729250), (2, 9864625), (5, 3945850), (10, 1972925), (25, 789170), (50, 394585), (53, 372250), (106, 186125), (125, 157834), (250, 78917), (265, 74450), (530, 37225), (1325, 14890), (1489, 13250), (2650, 7445), (2978, 6625)]