31990790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{3371}}^1$

素因数の和:3464

約数の個数: 32

約数和(自身を含む): 62881056

約数和(自身を除く): 30890266

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 365, 730, 949, 1898, 3371, 4745, 6742, 9490, 16855, 33710, 43823, 87646, 219115, 246083, 438230, 492166, 1230415, 2460830, 3199079, 6398158, 15995395, 31990790]

約数ペア:

[(1, 31990790), (2, 15995395), (5, 6398158), (10, 3199079), (13, 2460830), (26, 1230415), (65, 492166), (73, 438230), (130, 246083), (146, 219115), (365, 87646), (730, 43823), (949, 33710), (1898, 16855), (3371, 9490), (4745, 6742)]