166044580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{638633}}^1$

素因数の和:638655

約数の個数: 24

約数和(自身を含む): 375516792

約数和(自身を除く): 209472212

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 638633, 1277266, 2554532, 3193165, 6386330, 8302229, 12772660, 16604458, 33208916, 41511145, 83022290, 166044580]

約数ペア:

[(1, 166044580), (2, 83022290), (4, 41511145), (5, 33208916), (10, 16604458), (13, 12772660), (20, 8302229), (26, 6386330), (52, 3193165), (65, 2554532), (130, 1277266), (260, 638633)]