51428140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36217}}^1$

素因数の和:36297

約数の個数: 24

約数和(自身を含む): 109523232

約数和(自身を除く): 58095092

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 36217, 72434, 144868, 181085, 362170, 724340, 2571407, 5142814, 10285628, 12857035, 25714070, 51428140]

約数ペア:

[(1, 51428140), (2, 25714070), (4, 12857035), (5, 10285628), (10, 5142814), (20, 2571407), (71, 724340), (142, 362170), (284, 181085), (355, 144868), (710, 72434), (1420, 36217)]