20048175

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4243}}^1$

素因数の和:4269

約数の個数: 48

約数和(自身を含む): 42100480

約数和(自身を除く): 22052305

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4243, 4725, 12729, 21215, 29701, 38187, 63645, 89103, 106075, 114561, 148505, 190935, 267309, 318225, 445515, 572805, 742525, 801927, 954675, 1336545, 2227575, 2864025, 4009635, 6682725, 20048175]

約数ペア:

[(1, 20048175), (3, 6682725), (5, 4009635), (7, 2864025), (9, 2227575), (15, 1336545), (21, 954675), (25, 801927), (27, 742525), (35, 572805), (45, 445515), (63, 318225), (75, 267309), (105, 190935), (135, 148505), (175, 114561), (189, 106075), (225, 89103), (315, 63645), (525, 38187), (675, 29701), (945, 21215), (1575, 12729), (4243, 4725)]