9904240

素因数分解:

$2^4\times 5^1\times {\mathrm{123803}}^1$

素因数の和:123816

約数の個数: 20

約数和(自身を含む): 23027544

約数和(自身を除く): 13123304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123803, 247606, 495212, 619015, 990424, 1238030, 1980848, 2476060, 4952120, 9904240]

約数ペア:

[(1, 9904240), (2, 4952120), (4, 2476060), (5, 1980848), (8, 1238030), (10, 990424), (16, 619015), (20, 495212), (40, 247606), (80, 123803)]