520020823

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1223}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 658022400

約数和(自身を除く): 138001577

約数列:

[1, 7, 19, 23, 133, 139, 161, 437, 973, 1223, 2641, 3059, 3197, 8561, 18487, 22379, 23237, 28129, 60743, 162659, 169997, 196903, 425201, 534451, 1189979, 3229943, 3741157, 3909931, 22609601, 27369517, 74288689, 520020823]

約数ペア:

[(1, 520020823), (7, 74288689), (19, 27369517), (23, 22609601), (133, 3909931), (139, 3741157), (161, 3229943), (437, 1189979), (973, 534451), (1223, 425201), (2641, 196903), (3059, 169997), (3197, 162659), (8561, 60743), (18487, 28129), (22379, 23237)]