31990270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{4643}}^1$

素因数の和:4716

約数の個数: 32

約数和(自身を含む): 63195552

約数和(自身を除く): 31205282

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 4643, 6890, 9286, 23215, 46430, 60359, 120718, 246079, 301795, 492158, 603590, 1230395, 2460790, 3199027, 6398054, 15995135, 31990270]

約数ペア:

[(1, 31990270), (2, 15995135), (5, 6398054), (10, 3199027), (13, 2460790), (26, 1230395), (53, 603590), (65, 492158), (106, 301795), (130, 246079), (265, 120718), (530, 60359), (689, 46430), (1378, 23215), (3445, 9286), (4643, 6890)]