408025540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1569329}}^1$

素因数の和:1569351

約数の個数: 24

約数和(自身を含む): 922766040

約数和(自身を除く): 514740500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1569329, 3138658, 6277316, 7846645, 15693290, 20401277, 31386580, 40802554, 81605108, 102006385, 204012770, 408025540]

約数ペア:

[(1, 408025540), (2, 204012770), (4, 102006385), (5, 81605108), (10, 40802554), (13, 31386580), (20, 20401277), (26, 15693290), (52, 7846645), (65, 6277316), (130, 3138658), (260, 1569329)]