209205855

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53437}}^1$

素因数の和:53480

約数の個数: 32

約数和(自身を含む): 384753600

約数和(自身を除く): 175547745

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 53437, 160311, 267185, 480933, 801555, 1442799, 1549673, 2404665, 4649019, 7213995, 7748365, 13947057, 23245095, 41841171, 69735285, 209205855]

約数ペア:

[(1, 209205855), (3, 69735285), (5, 41841171), (9, 23245095), (15, 13947057), (27, 7748365), (29, 7213995), (45, 4649019), (87, 2404665), (135, 1549673), (145, 1442799), (261, 801555), (435, 480933), (783, 267185), (1305, 160311), (3915, 53437)]