16481140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{63389}}^1$

素因数の和:63411

約数の個数: 24

約数和(自身を含む): 37273320

約数和(自身を除く): 20792180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 63389, 126778, 253556, 316945, 633890, 824057, 1267780, 1648114, 3296228, 4120285, 8240570, 16481140]

約数ペア:

[(1, 16481140), (2, 8240570), (4, 4120285), (5, 3296228), (10, 1648114), (13, 1267780), (20, 824057), (26, 633890), (52, 316945), (65, 253556), (130, 126778), (260, 63389)]