18911810

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 16546750

約数列:

[1, 2, 5, 10, 37, 74, 79, 158, 185, 370, 395, 647, 790, 1294, 2923, 3235, 5846, 6470, 14615, 23939, 29230, 47878, 51113, 102226, 119695, 239390, 255565, 511130, 1891181, 3782362, 9455905, 18911810]

約数ペア:

[(1, 18911810), (2, 9455905), (5, 3782362), (10, 1891181), (37, 511130), (74, 255565), (79, 239390), (158, 119695), (185, 102226), (370, 51113), (395, 47878), (647, 29230), (790, 23939), (1294, 14615), (2923, 6470), (3235, 5846)]