220515681

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 313344000

約数和(自身を除く): 92828319

約数列:

[1, 3, 29, 47, 87, 141, 199, 271, 597, 813, 1363, 4089, 5771, 7859, 9353, 12737, 17313, 23577, 28059, 38211, 53929, 161787, 271237, 369373, 813711, 1108119, 1563941, 2534663, 4691823, 7603989, 73505227, 220515681]

約数ペア:

[(1, 220515681), (3, 73505227), (29, 7603989), (47, 4691823), (87, 2534663), (141, 1563941), (199, 1108119), (271, 813711), (597, 369373), (813, 271237), (1363, 161787), (4089, 53929), (5771, 38211), (7859, 28059), (9353, 23577), (12737, 17313)]