8400340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{32309}}^1$

素因数の和:32331

約数の個数: 24

約数和(自身を含む): 18998280

約数和(自身を除く): 10597940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 32309, 64618, 129236, 161545, 323090, 420017, 646180, 840034, 1680068, 2100085, 4200170, 8400340]

約数ペア:

[(1, 8400340), (2, 4200170), (4, 2100085), (5, 1680068), (10, 840034), (13, 646180), (20, 420017), (26, 323090), (52, 161545), (65, 129236), (130, 64618), (260, 32309)]