31204420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{120017}}^1$

素因数の和:120039

約数の個数: 24

約数和(自身を含む): 70570584

約数和(自身を除く): 39366164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 120017, 240034, 480068, 600085, 1200170, 1560221, 2400340, 3120442, 6240884, 7801105, 15602210, 31204420]

約数ペア:

[(1, 31204420), (2, 15602210), (4, 7801105), (5, 6240884), (10, 3120442), (13, 2400340), (20, 1560221), (26, 1200170), (52, 600085), (65, 480068), (130, 240034), (260, 120017)]