208020915

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{159403}}^1$

素因数の和:159443

約数の個数: 24

約数和(自身を含む): 373005360

約数和(自身を除く): 164984445

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 159403, 478209, 797015, 1434627, 2391045, 4622687, 7173135, 13868061, 23113435, 41604183, 69340305, 208020915]

約数ペア:

[(1, 208020915), (3, 69340305), (5, 41604183), (9, 23113435), (15, 13868061), (29, 7173135), (45, 4622687), (87, 2391045), (145, 1434627), (261, 797015), (435, 478209), (1305, 159403)]