210340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 476280

約数和(自身を除く): 265940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 809, 1618, 3236, 4045, 8090, 10517, 16180, 21034, 42068, 52585, 105170, 210340]

約数ペア:

[(1, 210340), (2, 105170), (4, 52585), (5, 42068), (10, 21034), (13, 16180), (20, 10517), (26, 8090), (52, 4045), (65, 3236), (130, 1618), (260, 809)]